Archive of Our Own ^beta

Chapter Text

Dull. Throbbing. Sharp.  

The pain radiated through his skull like ice, growing tight around his right eye while his jaw became stiff. Slowly, he rolled his neck in hopes of alleviating the ache that pulsed from his shoulder all the way to the back of his head.  

The headache, the blurry vision, the (even more than usual) irritable mood. 

And the annoying blue rat opposite him wasn’t helping any of these matters right now. 

They had been racing, Sonic getting a sneaky head start with a wide grin plastered on his face as he bounced away, leaving behind a blue trail for the agent to follow. With a sigh, Shadow had followed. Because no matter how often Shadow complained that he was above such petty competitions, who else was there to keep up with the Blue Blur and put him in his place? 

At first, he had ignored the persistent tingling in his neck, chalking it all down to excess Chaos energy flowing over his fur as the adrenaline took over. He’d also ignored the initial stiffness of his jaw, simply putting that down to his irritation at his rival for using such low tactics to get a head start. 

But it was as they both crossed the proposed finish line, Shadow a hair’s breadth away from Sonic, that the first dull ache creeped into head, finally getting his attention. Shadow didn’t get sick and any pain he’d ever felt in the past was inflicted by injury. 

So, what the hell is this?  

The pain had distracted him enough to allow Sonic to place a teasing hand on his shoulder as he gloated over his win, rocking Shadow back and forth slightly which only made the pain worse. In his irritation, the hybrid had lashed out, swatting away the hero’s hand probably harder than it warranted. 

And that’s where they were now. Fighting, rolling around on the now crumpled grass, and legs kicking out in hopes of hitting any target. Shadow had managed to land a few punches on Sonic, watching in glee as Sonic had simply shaken them off like nothing before retaliating with his own.  

Shadow’s own moves were slower than usual, not quite sluggish, but he did not have the brain capacity to think clearly on what moves to pull next. If Sonic had noticed anything strange about the hybrid, he was definitely using it to his advantage. 

After a particularly strong throb at the back of Shadow’s head which was accompanied by the appearance of two black dots in his vision, he had winced, dragging one of his hands through his quills in hopes to relieve the tension in his head. 

The next thing he knows, Sonic is straddling his stomach, and just as he opens his eye to take note of his next move, a white gloved fist is making contact with his jaw. The force snaps his face to the side and for one blissful second, the pain in his jaw is great enough to distract from whatever is going on in his skull. 

He blinks. 

And then it all comes rushing back to him. The ringing in his ears, his brain rattling around from the force of the punch, and Sonic sat above him and watching him curiously. Such a heavy and deep wave of fatigue settles across him, and with a groan Shadow goes limp on the floor, no longer having the energy to do anything but close his eyes. 

Distantly, he can hear Sonic asking him a question, but the thought of opening his mouth and thinking of words makes another groan escape his lips. Slowly, Shadow brings his hand up to his quills, grabbing onto the emerald hiding there and with a flash he is gone, leaving behind a very confused blue hedgehog. 

The next time he’s caught out by his new condition is at Sonic’s birthday party, and quite possibly one of the worst places to be experiencing a headache. Loud music blares away from a speaker in the corner, people’s chatter filters across the space and mix with that dreaded ringing in his ears. 

He’d been trying to nap away the ache in his head in the apartment he shared with Rogue, when she had barged in and almost dragged him down into Club Rogue below, reminding him that he’d promised to show himself for at least 20 minutes (which he was now counting down every second of). 

Thankfully, people are often happy enough to leave Shadow to brood alone by himself in the corner of one of the booths. Everyone except one, who was currently sliding in beside him. 

“Shadow! You made it...” Shadow does not miss the edge of hesitation that creeps into Sonic’s tone. 

After all, the last time they had seen each other was when they’d fought, and Sonic had punched the hybrid square in the jaw. From the hero’s point of view, he’d watched his rival (The Ultimate Lifeform, mind you) take a hit that normally he would have shaken off with ease. Yet this time, he’d watched Shadow go limp, groan in pain and then just vanish. 

To say he had been concerned had been an understatement. In fact, he’d been so concerned he’d even dropped Rouge a message to make sure she checked in on her roommate once she was home. 

Rouge had assured Sonic that her favourite hedgehog was all fine, just sleeping, and yet he remained curious. 

Just what did it take to bring down The Ultimate Lifeform like that? 

Right now, Shadow simply grunted his reply, glaring daggers at his rival who he was sure felt smug about his last victory. 

“So,” Sonic began to tap his gloved fingers against the table as a sly smile spread across his face, “how are you feeling?” 

Shadow knew it. 

With an eye roll that took a lot more energy than usual, Shadow snarled out and short “Fine.”  

“Mmhmm. Jaw not hurting too bad?” accompanied by a smug smirk this time as he leaned closer to try and spot any sign of injury on the other. 

At this, a scoff left Shadow’s lips, “You really think you can hurt me ? Don’t make me laugh, Faker.” 

“I dunno,” a shrug, “never seen you handle a blow like that before.” 

Sonic’s voice droned through his ears like an icy cold knife, slicing its way as it made a path from one ear to the other. The edges of his vision were starting to blur as he squinted against the bright club lights. 

With a huff, Shadow placed his head in his hands as he squinted down at the table before finally closing his eyes. 

“You just... caught me at a bad time... Is all.” he almost slurred. 

This was enough to get Sonic’s attention, as the next thing he felt was a hand squeezing his shoulder. 

“Whoa, are you drunk? You’ve barely been here ten minutes.”  

At this point, Shadow didn’t even have the energy to shrug away the unwanted touch, actually thankful for the slight pressure Sonic was pressing so close to his stiff neck. 

“Sonic,” his voice came out sharp and strained, “go to your friends. Please.” The last part almost sounded desperate, and Shadow inwardly cringed but he was almost beyond caring at this point. 

If Sonic wanted to say anything else he didn’t, lingering with his hand still on Shadow’s shoulder for a few more moments before the warmth was pulling away and only the sounds of the club were present to torment him. 

Shadow remained in the booth for exactly five more minutes, counting down every single second, before raising slowly and slinking his way out of the club without so much as a nod in anyone’s direction. 

He could feel someone’s eyes boring into his back as he trudged away, ignoring it to instead go to his apartment and immediately fall into the darkness of his room and remain there for the next 20 hours. 

Shadow startled awake with a gasp, bleary eyes trying to flutter shut again against the bright rays of the shaded sun. He felt his head thunk against the dry bark of a tree behind him, the tickle of grass under the backs of his legs from where he rested slouched and groggy. 

The fur on his arms stood on end and his quills were raised in alarm. Something or someone must have woken him up from his impromptu nap. After a few moments of barely concentrated silence as Shadow continued to wake up further, he finally deemed his life in no real threat and relaxed back against the tree. Waiting. 

He didn’t have to wait long until he heard, 

“Oh, sleeping beauty is finally awake.” 

“What do you want, Sonic?” 

There were a few moments of silence, where the hero seemed to regard him, watching for something. 

“Not like you to be caught sleeping outside like this.” Sonic mused. 

“And yet, here I am.” 

Sonic hummed, once again watching Shadow carefully. 

Shadow didn’t even have the energy to care at this point as that dull throb settled back into his senses again. 

“Actually, Rouge told me all about it.” 

“Oh?” He hissed as he turned to face the hero, “Enlighten me.” 

“You know. The headaches.” 

At this, Shadow blanched for a moment, looking over at the hero curiously. He wondered why the other had even cared enough in the first place to ask Rouge, other than to be nosey, of course. 

Instead of responding verbally, Shadow just slumped further against the tree, bringing up a hand to rub furious circles into his temples. The motion brought a very slight relief, but the droning sickness return the second he stopped. 

“You know, there are ways to help with them? I asked Rouge if you’d tried anything, but she wasn’t sure.” 

“Medicine doesn’t work. I’ve tried. I’ll talk to G.U.N about it.” he groaned, closing his eyes again. 

“Have you tried anything else?” Sonic tsked, poking the hybrid on his shoulder to prevent him from drifting off again. 

Shadow refused to respond, trying to make the most of the sudden comfortable position he’d found himself in and not wanting to ruin the relief. After a moment of silence, he felt Sonic jump up to his feet beside him. 

“Well, we’ll figure it out, don’t worry!” and with a gust of wind, he was gone. 

However, instead of feeling at peace now the chatterbox was gone, Shadow felt a frown creasing his brow. 

We?  

It had started a week or so later. 

Shadow had come back to the shared apartment alone after a particularly rough mission, his heavy air shoes dragging the last few steps as he approached the door. Something caught his eye, a black plastic bag dangling limply from the door handle. 

Hesitantly, he had looked around the hall for any signs of people but came up blank. Rouge wasn’t home because she was still away on her own mission, so the hybrid had no idea who could have left a grocery bag here. 

Slowly, he peeked inside, a brow raising in confusion at the contents. 

An... Icepack?  

In confusion, Shadow brought the item inside and dumped it on the nearby kitchen counter. The icepack was currently the least of his worries as he made his way to the shower to wash away the dirt from his travels. 

It was only once he was settled onto the couch later that he noticed his phone blinking with a message, wondering who would even be awake at this time. 

Sonic: 
Did you get my present?? 

Shadow: 
What nonsense are you spouting? 

Sonic:  
The Icepack!! 
I read all about headaches while u were gone 
It’ll help 

Shadow:  
How is this flimsy thing going to be any help? 

Sonic: 
Well u see the way icepacks work is u put ice inside and then u put it on the area that hurts isn’t that crazy?????? 
Duh 

Shadow stared down at his phone with a scowl, almost wishing the other was here just so he could smack the smug smirk off his face he knew he would be sporting. Shadow’s lack of reply saw another buzz come from his phone a few seconds later. 

Sonic:  
anywayyy 
let me know if it helps or not :)

And so, Shadow had shoved the icepack into a cabinet forgetting all about it for two more weeks, until suddenly he was draped over the couch with his eyes squinting against the offending morning light. 

It was only as nausea finally set in that Shadow was prompted to stand up and rummage for something to help with his situation. Blindly, his hands grabbed at anything in the cabinets in hopes that something would work. 

A pack of gum, a flashlight, a half melted old candle, an icepack- 

The icepack. 

Without a second thought, he was ripping it from the shelf and stumbling over to the freezer to dump it full of ice. Once he made it back to the couch, he laid down heavily before pressing the ice pack against his right brow. 

A subtle sigh left his mouth as the ice-cold spread across his skull where it made contact with his fur, the slight threat of brain breeze distracting him momentarily from the pain. The pain never actually left, but the relief was enough for Shadow to finally sink into a more peaceful slumber. 

When he awoke three hours later, although groggy, it was obvious he had napped himself through the worst of the migraine. As he sat there, with the now melted ice pack sloshing in his lap, he picked up his phone and opened his messages. 

Shadow: 
The icepack was fine.  
Doesn’t stop the pain, but it will do. 

The next gift he found waiting for him was a heat pack. Shadow had let slip that his neck would become stiff during his new episodes, and so Sonic had continued his research. On its own, the heat pack didn’t really help much, but a combination with the icepack insured for a good sleep while he waited it out. 

Other gifts had followed suit – expensive coffee beans in the hopes that caffeine would work, ginger tea, camomile – but each one did little more than ease some of his symptoms.  

It was one completely normal day when the Shadow got a message from the blue hero. He’d been writing up a drab report after a mission, so for once the distraction was welcomed.  

Sonic: 
I think I’ve run out of headache remedies 
Only have one or two solutions left 

Shadow:  
Well, it won’t hurt to try them at this point. 

There was an uncharacteristic silence from Sonic’s end, no new messages coming through for a good twenty minutes, until his phone finally pinged. 

Sonic: 
I don’t think ur gonna like it tho lol :( 
 

At this, Shadow scowled down at his phone, wondering what could possibly be so bad that he wouldn’t want to try it. At this point, Shadow was willing to do anything to relieve his pain. 

Just as Shadow was about to reply, another message came through, this time just a link to a website. He opened the link and skimmed the contents lightly, recognising a lot of the mentioned remedies as ones Sonic had tried already. 

Shadow felt his eyes widen as he scanned over the last suggestion on the page, the light prickling of a blush creeping over his muzzle. He blinks. A breath huffs out of his nose. He reads it again. 

Step 6. Having an orgasm.  

With a scoff, he opens his messages and begins typing. 

Shadow: 
No. 

 
Sonic:  
U won't try it? 
Not even once?? 
 

Shadow: 
The last thing I’m thinking about when my head is about to explode it having an orgasm, Sonic. 
I barely have enough energy to keep my eyes open. 

There was another stilted moment of silence, in which Shadow watched the three dots appear as Sonic began typing, only to disappear, appear, and then vanish again before his message came through. 

Sonic: 
What about if someone helped you then? 
So you can just relax? 

Shadow: 
I can’t tell if you’re seriously asking me that. 
Don’t piss me off, Faker. 

Sonic: 
I mean it! 
Get someone to help u out, no biggie 

No biggie, he says.  

No biggie. 

This conversation alone would be enough to trigger a headache. 

Shadow 
And just where do you suppose I find someone to just “help me out”? 

The hybrid waited a while for a response but when after ten minutes it didn’t come, he busied himself once again with his work. It was only as he was signing out of his laptop and walking over to his room that he glanced down at the notification on his phone. 

Sonic: 
You have my number ¯\_ ⍩⃝_/¯ 

Shadow hadn’t responded to the message. In fact, Shadow had been actively avoiding even opening the message, not until he knew exactly how he wanted to respond. And how was he supposed to respond? It’s not every day that the Hero of Mobius offers to nurse you back to full health with an orgasm. 

So, he ignored the message. And in the few instances he saw the blue blur in person, neither of them brought it up. In fact, Sonic behaved the same as usual, not a care in the world and with no intent to ignore Shadow. It got to the point where even Shadow had forgotten about the unread message sitting in his notifications, yet he left it there anyway, for reasons he wasn’t sure. 

It was after a month of this, that Shadow would finally understand why. 

He’d shakily Chaos Controlled his way home after a painfully slow day at work, the sudden teleportation inducing deep nausea in him for perhaps the first time. As he passed the kitchen, he made sure to grab the icepack and hot pack before making his way into his dark bedroom.  

Slowly, he lowered himself down onto the bed, having enough mind to throw off his G.U.N issued jacket somewhere, but not finding the energy to remove the baggy combat trousers he hated so much. 

He slumped down deep into the pillows, bringing the icepack up to his forehead and sighing with the minute relief it provided. The hot pack rested at the nape of his neck, and he waited patiently for sleep to take him. 

He waited. 

And he waited. 

But no amount of fatigue was distracting him from the current pain throbbing behind his eye and rattling through his skull. He groaned loudly as he rearranged the position of the icepack and hot pack. 

Nothing. 

The next thing he did was drag himself up and into the kitchen, squinting against the light of the fridge as he worked on making some coffee. Caffeine would surely do the trick. After taking a few large gulps of the steaming, rich coffee that Sonic had bought him, he waited thirty minutes. 

Nothing. 

OK... then maybe camomile today. It will help me sleep.  

Nothing. 

He made his way back to his room and sat on the bed, his head in his hands, as he contemplated his options. From experience, he had about fifteen more hours of this at least . An exhausted sigh escaped his lips as he thought about just how much he wanted to sleep right now, yet the pain was too distracting to ignore. 

He thought about the list that Sonic had sent him. 

No biggie , he had said. Maybe for someone as carefree as the wind, it was ‘No big deal’. But, it was in fact a big deal for Shadow, because how could he just ask his rival for something like that? Their relationship was shaky at most, with most of the effort put in on Sonic’s side as it was. 

They had a routine, and they had clear set expectations from one another, but this? Shadow didn’t even know where to begin processing what this would mean.  

But the ache and the pain .  

Slowly, Shadow reached down to rest a gloved hand on his own thigh, contemplating his next move. Masturbating really was the last thing on his mind right now, but if it would help... 

With an exasperated sigh, he moved back to rest on the pillows again and letting his hand rest firmly over where his concealed pouch would be hiding under his combat trousers. With effort he rubbed over the area, the friction from his hand and clothes feeling good against his fur, but nowhere near good enough of a distraction for his condition.  

Fruitlessly, he rubbed and rubbed, his hand undoing just the top button of his slacks to dip his hand under the waistband to encourage his length out of the pouch. No matter how much he stroked and grinded, although hard under his fur, his dick refused to slip out on its own. 

The pounding in his head had his brows furrowed in frustration, every movement of his own hand seeming to increase the tension behind his eyes instead of releasing it. 

It was no use. 

Blindly, he used his other hand to grab his phone, opening the message he’d wilfully ignored for the last month with no shame as his fingers typed quickly. He dropped the phone somewhere onto the bed with no care, sinking back down into the pillows with his eyes closed. 

Shadow had almost started to doze off when his ears twitched towards his open bedroom door, the sound of the someone typing in the code for the apartment door catching his attention. He heard the door close with a soft click and then the soft pad of socks moving across the wooden floors. 

He didn’t need to open his eyes to know that someone was stood in the open doorway, feeling the ghost of their gaze wash over him as they observed him, almost cautiously. After only a moment of hesitation, Shadow felt the mattress beside him dip as they made themselves comfortable beside him, making an effort not to touch. 

“You awake, Shads?” came the surprisingly quiet whisper beside him. 

Even if Shadow had wanted to respond verbally, he couldn’t muster the energy so settled with a quiet grunt and a small nod. 

“How are you feeling?” 

Shadow felt like this was a stupid question, because if he had been feeling anything other than misery right now, Sonic would not be sitting on his bed. He responded with another grunt. 

An amused huff left Sonic’s nose at the response, Shadow noting how he scooted a little closer to the hybrid. 

“I’m taking that as Shadow talk for ‘ I am in an immeasurable amount of pain, Faker’.”  

This earned him a scoff, one of Shadow’s eyes finally flicking open to regard the other. He was sat with his knees bent up, resting his elbow on the knee lazily as he watched over Shadow. 

“Please. It is... merely a... slight distraction.” he scoffed. 

“And yet, here I am.” Sonic shrugged, a small smile visible from the little light filtering in through the open window, “You need me to distract you further?”. 

Shadow scowled into the dark, “If it will help. I just want to sleep.” 

Sonic inched closer again, almost touching the other as he murmured, “I can do that. It’s no biggie, right?” 

Sonic didn’t move, as if waiting for Shadow to respond. The hybrid tried to think carefully, trying to push the pain away for second to think rationally. 

With a sigh, he relaxed more into the pillows, closing his eyes again and muttering out an almost strained, “Right.” 

He felt Sonic reposition himself a final time, laying down on his side with his head propped up on his elbow, his front pressing softly against Shadow’s arm. Shadow waited in anxious anticipation for Sonic to do something, touch him, grab him, anything, but it never came. 

He peeked his eye open again to find the hero watching him curiously. 

“Is it OK to touch you, Shadow?” This time there was no air of teasing surrounding the other, the questions serious. 

“If it wasn’t, I wouldn’t have asked you to come.” Shadow huffed, closing his eyes again and tipping his chin back in an act of arrogance, “So, are you going to do it or not?” 

A quiet snort left Sonic’s lips, likely from Shadow’s behaviour which he knew from experience meant the other was feeling out of his element. Sonic raked his eyes over the other hedgehog, taking note of his combat slacks, the top button undone and of course, the gloved hand still trapped under the waistband. 

“Shadow,” Sonic almost cooed, “Were you touching yourself?”  

A simple “Yes” was mumbled from the hybrid, however the hand retreated from under the waistband, coming to rest across his tense stomach instead. 

“Did you feel better?” he asked, genuinely curious if there had been any results. 

“Too... tired. Couldn’t-” 

“OK, OK. No more thinking from you then, just relax, Shads.” 

Sonic brought his hand up to cup firmly over the crotch on Shadow’s cargo’s, whatever arousal had been there before had now completely waned, but that was nothing the hero couldn’t fix. 

He presses down with the heel of his palm, grinding pressure down in small circles over Shadow’s pouch. A slow exhale sounds from the other hedgehog, the hero taking this as his sign to keep going. 

Sonic could feel the length get firm over time, likely desperate to be released from the pouch. He moved his gloved hand up to the waistband, his fingers playing with the white tuft of fur that trailed down from Shadow’s navel and disappeared under the pants. It was soft, just like the fur that adorned his chest, and it was with a small tug of it that he continued lower, squeezing his gloved hand under the cargo’s. 

Blindly he searched for the stiff pouch, stroking gently over the fur there and smiling to himself when he found what felt like the slit already opened. The tip of a wet cock was peeking out, two of Sonic’s fingers rubbing over the head softly to draw it out further. The friction from his gloves dragged a short gasp from the hybrid, a quick glance up seeing Shadow with his eyes still squeezed shut. 

As he continued to stroke over the slit, he noted just how wet his glove was getting, the slick making his fingers slide easily over the heated flesh. It was as Sonic added more pressure to the tip of the hybrid’s cock that it finally slipped out, pressed flush against the constraints of the cargo pants. 

Sonic marvelled at the new tent, straining uncomfortably against the zipper. He looked big . 

Slowly, he pulled his hand out from under the waistband, palming at the tent and taking his time to just feel. His fingers wrapped around the clothed cock, giving it a firm squeeze before rubbing up and down the shaft lightly. 

Shadow relished in the friction, his head tilting further back into the pillows, his brow creased as he focused on the feel of Sonic’s large hand working him slowly. 

“Let me get that for you.” Sonic grinned, fingers moving to grab the zipper and pull it down carefully from the tented pants. 

A sigh of relief slipped past Shadow’s lips as the pressure was released, the cold air of his bedroom finally hitting his bare cock as it popped out to rest on his stomach. 

“There’s no way all of that was hiding under there this whole time.” Sonic almost sounded bewildered, fingers immediately coming back to the shaft. 

His gloves stroked over the various bumps and ridges that lined the underside of his cock, coming up to a tapered and soft head, meanwhile thickening at the base. Sonic watched in awe as slick beaded from the tip, almost a continuous stream of it as it fell down the shaft to soak into his gloves. 

“You’re so wet .”  

He didn’t even give Shadow the time to process his words before his hand was moving up and down the length, fingers curled in a tight hold as they dragged over each ridge and vein. Wet sounds filled the dark room as his hand moved, and Sonic couldn’t help dragging his eyes up the hybrid’s body as he worked. 

Shadow’s stomach muscles fluttered as his arousal made itself known, the hand that still rested there curled into a fist. The black hedgehog’s neck was tilted back into the pillows, his quills splayed out, meanwhile his other arm was draped across his eyes. 

Sonic watched him intently as he picked up the pace of his hand, biting his own lip to keep in his own noises as Shadow panted open mouthed into the air. Hearing his rival’s stuttered sighs as he worked a hand over him almost had Sonic spiralling, not yet fully processing just what he was experiencing. 

“Does it feel good?” 

An aborted groan, followed by a long hum was his answer, the hero taking note when Shadow’s hips started to thrust up minutely into his hand, desperate to get as much out of it as possible. Shadow’s thrusts were slow and languid, opposite of how fast Sonic’s hand was rubbing along his shaft. 

 The first moan that slipped out from tan lips washed over Sonic like a wave, sending a jolt down his spine as he watched Shadow get closer to the edge. Sonic squeezed his thighs together at the feel of his own arousal, trying so hard to focus on the needs of the hybrid even as the fur between his own thighs became damp. 

“That’s it, Shads. Take what you need.” He cooed, twisting his hand on the upstroke to drag more slick from the cock, and earning a whine from the other. 

Sonic pressed himself closer, resting his head next to Shadow’s ear that was currently twitching, breathing compliments directly into his ear as he stroked and stroked. A series of “You’re doing so well”, “Almost there” and “C’mon Shads, let me hear you” whispered hotly across Shadow’s fur had him moaning even louder. Distantly, he could feel Sonic nosing along his muzzle, inhaling his scent before a wet tongue draped across the salt of his neck, humming in content at the taste. 

The feel of Sonic’s warm hand wrapped around him and paired with his words had Shadow’s hips stuttering in their movements, warm jolts tingling down his spine as he grew closer and closer to the edge. 

The pain in his head had faded to mere background noise as he focused on his upcoming release, grateful for the arm draped across his eyes to hide his fluttering lashes and rolling eyes. 

It was with a gasp, as Sonic rubbed over one of the bumps under his cock, that he finally came. Distantly, he felt himself spilling all over those white gloves, but he was distracted entirely by the feelings in his head. 

As he hit his peak, the rush of endorphins almost sent him spiralling, wrapping around the base of his skull like a comforting hand before travelling all the way up to the tips of his ears and down to his toes. 

He could vaguely hear Sonic still whispering praises into his ear as he stroked him through it, but the sudden rush of blood to his head blocked out any noises, and his vision blurred. Instead of fighting the fatigue that washed over him, he released himself to it, allowing himself to go limp in the pillows and relishing in the very real relief from his pain. 

The next time his eyes fluttered open, the morning sun was beginning to peak in from behind the clouds, bathing his room in a fresh yellow glow. Blinking away his confusion he had looked around the room for any traces of last night but found none. 

He noted that his cargos were no longer on his legs, and the icepack rested close to his head as if someone had placed it there new, still slightly cold from being refilled with ice. He also noted that his headache was completely gone, and while still groggy, his condition was faring much better than before. 

So, it had worked. 

It was with a groan that he sunk back into bed, pulling the blankets around him to hide himself from the new reality of his situation. The worst possible outcome had been achieved, and he was sure to never live it down. 

Sonic had been right . 

Chapter Text

After that night, to the hybrid’s surprise, things had returned for the most part to normal. Shadow still went to work, he still occasionally helped Rouge down at the club, he still went shopping with Amy. He still raced with Sonic.  

Everything was so very normal.  

Whenever he bumped into Sonic, neither of them mentioned it, opting to put their all into racing or fighting instead. Shadow liked it this way, as he wasn’t exactly one for many words, and the thought of talking about the implications of what had happened made his skin scrawl.  

It was the perfect situation.  

What was there to even talk about? Sonic had simply acted the hero and helped a friend in a desperate time of need. And besides, Shadow had been so fatigued that his memory of the night was patchy at best.  

Not that he wanted to think about his rival’s hands working his cock, of course.  

Shadow was determined to take it by Sonic’s words. No. Big. Deal. Shadow could be calm and collected about the turn his life had taken, and he would make sure everything remained no big deal for as long as possible.  

The problem was, now he knew how easy it was to solve the headache problem. All he had to do was stroke one out and he’d be back to peak condition; he could do that. Except he couldn’t, at least, not by himself.   

The following two headache episodes had seen him try, almost furiously trying to reach some form of peak before eventually giving up and relenting to his fate of laying for 20 hours in pain.  

He resisted asking Sonic for help again, because one time really was no big deal. But two? Three?  

Yet, it was on the third episode, two whole months later, that he finally caved. When it felt like his brain was about to start leaking out of his ears, an abrupt text was sent, and within twenty minutes Shadow had a firm hand wrapped around him and enough endorphins rattling through his brain to settle him.  

Then the time after that, where Sonic had practically edged him within an inch of his life, his hand dragging needy and pained groans from the hybrids mouth as he’d verged on the edge of tears at just how good it felt to let go.  

And so, it became part of their new routine. It was never mentioned explicitly, yet if Sonic received a message, he was there. He was there with his smug smile, his teasing voice and his unmatched enthusiasm. He was there to stroke at just the right pace and whisper into his twitching ears.  

Once they were finished, Sonic would often watch over Shadow for a few moments, ask how he was feeling, before cleaning them up and heading out with nothing else but a wave.  

Shadow’s attempts to be unbothered and nonchalant about the whole thing became strained once the endorphins were racing through his brain. Because that’s when he started running his mouth. Urging Sonic do more, praising him for his help, egging him on.  

Shadow almost cringed at the thought.  

In his post-orgasm daze, Shadow never really thought much about anything but the relief he was feeling. However, sober Shadow had started to notice one thing that was bothering him more than it probably should.  

Sonic never asked for anything back. Ever.   

Yes, this weird arrangement they had going was focused mostly on Shadow’s needs, and although it seemed that Sonic was happy to do that, it didn’t sit right with the hybrid. He found it hard to believe that the hero really was unbothered by everything.  

So, during each visit from Sonic he would watch him, blinking through the dark spots in his vision and the aura to look for any sign of weakness. Anything. Any tell to prove that it wasn’t just Shadow thinking about this 24/7.  

While Sonic focused all his efforts into what his hands were doing, or his lips as they murmured directly into Shadow’s ears, his thighs would often be pressed tightly together to bring whatever friction they could find. Either that, or his tail would be swishing rapidly behind him.  

And the more he thought about it, the more annoyed he got. How was it fair for Sonic to see the hybrid in such a vulnerable and weak state, but Shadow didn’t get the same in return?  

The thought of owing something to the other was unbearable, the only solution being to at least reciprocate the act. But this meant their dynamic would change again .  

Was it just ‘helping a friend out’ if he was also returning the favour? Mobian customs were often lost on the hybrid, yet the thought of asking Rouge for guidance almost made him want to wither away into dust.  

He’d never live it down.   

The main problem was keeping his brain switched on after he reached his peak. Usually, Shadow’s brain suddenly felt so good , he would simply melt into the bed or couch, and by the time he blinked his eyes open Sonic was on his way out or already gone.  

Which leads to now, where currently they are both sat on the couch that decorates Shadow and Rouge’s apartment. The latter was out managing the club so there was no chance of her coming back any time soon.  

Sonic was sat glued to the hybrid’s side, one arm resting on the back of the couch bent at an angle to lazily rest his chin on his hand while he watched the other. His other hand was busy stroking languidly down Shadow’s cock, the only sounds in the room being the wet smack of skin and the occasional sigh.  

For a while Sonic looked content to just study Shadow’s face, eyes boring into the side of his head as if intrigued by what he saw. Shadow could feel his skin become flustered at the attention, trying to either keep his eyes closed or watch the hand moving over him.  

Shadow’s eyes peeked open again when he felt Sonic begin nosing along his muzzle, anticipating the soft peach lips that eventually found his own in a hesitant kiss, before progressing into the slow smack of their lips.  

This was also new. Shadow isn’t sure exactly when the kissing had become a thing, but he wasn’t going to complain about it, not when Sonic’s tongue was teasing across the seal of his mouth and asking for entrance. He opened his mouth willingly, letting Sonic take the lead for now.  

Shadow was sure that kissing was likely the only thing that Sonic was capable of doing slowly, his tongue rubbing in just the right places as muffled whines are swallowed by them both.   

Shadow is vaguely aware of the wet pants that leave his lips, swallowed down by Sonic’s eager mouth, a black nose grazing across his cheek as he changes the angle to lick deeper. The dull throb behind his eyes is reduced to nothing but white noise as peach lips close around his tongue, sucking on it for a moment with a hum before teeth are biting at his lip.  

All the while, that infuriatingly skilled hand is busy teasing the head of his cock, long and bare fingers occasionally pinching at the tip to draw out more pre-cum to spread around. Sonic lets out his own muted noises of enthusiasm, especially whenever the hand Shadow has latched onto his quills flexes and pulls.  

They continue like that for a while, Sonic’s hand moving firmly across heated flesh as they make out, but all too soon the hero is pulling away with a sigh.  

“Hey, Shads,” he pulls back enough to catch Shadow’s glazed eyes, wanting his full attention, “I wanna try something. You can say no, but I think it will help.”  

The hybrid blinks a few times, trying to focus his brain on the words leaving the other’s mouth.   

“What?”  

Sonic’s hand continues its movements, not faltering for a second as he murmurs, “Can I use my mouth? Hm... or is that too much?”  

Shadow tries to ignore the ringing in his ears, no longer sure if it’s a symptom of his headache or just from the amount of blood that just rushed to his head at the thought. He tries hard to think, really, but the thought of Sonic’s tongue doing to his shaft what it had done inside his mouth has his imagination running wild.  

Is it too much?  

Right now, between the headache and the hand working him, Shadow did not have enough braincells to be worrying about the frail dynamic they were working on right now.  

With a brisk nod and a sigh from Shadow, a pleased grin curls Sonic’s lip before he’s moving, extracting himself from Shadow’s side to stand in front of him. He spreads black thighs easily, the hybrid’s fatigue working to his advantage as the hero kneels in the space between them.  

A bare hand is back to pumping up and down, spreading the slick over heated skin and Shadow watches intently, keen not to miss even a single second of the show as Sonic leans forward.  

A soft, wet, tongue presses flatly to the tip, the hybrid watching in awe as a bead of slick runs down straight onto the tongue. Peach lips pucker to suckle at the head, the warm suction immediately dragging a groan from Shadow’s lips. The other sucks gently, seemingly happy to just stay where he is and taste the slick Shadow is spilling out.  

He pulls away briefly with an audible ‘pop’, trailing his tongue down the underside of Shadow’s cock, paying extra attention to the series of bumps just under the head, tracing them down to the flared base and back up again.  

As Sonic moves to press wet kisses and kitten licks against his skin, jolts of arousal travel up his spine and distract him entirely from the dwindling headache. It’s as Sonic is taking the tip back into his mouth, inching lower and lower, that Shadow’s hand finds its way into blue quills.  

He tugs encouragingly, earning a pinch on the thigh from the other and a hum that vibrates all the way down to his toes. Shadow feels his eyes slip shut and lets himself get lost in the warm suction of his rival’s mouth, tongue kissing over the vein that marks the shaft.  

Once Sonic’s nose is pressing into black fur at the base of his cock, he pauses there to catch his bearings, and Shadow opens his eyes to watch the hero try hard not to gag. Although Sonic is definitely experienced, Shadow knows that no other Mobian’s anatomy compares.  

With that thought in mind, Shadow teases a small and slow grind of his hips, pushing further into the stretched mouth. The new motion drags a small whimper from the hero, his eyes flashing up to meet Shadow’s, an almost competitive glare to them as he holds the eye contact.  

Shadow feels more than sees as Sonic swallows around him, his throat constricting tight around the head of his cock, squeezing a drawn-out moan from his own throat. Sonic’s eyes never leave his as he begins a slow and languid pace, pausing at the base to swallow before pushing back up to suck at the tip.  

Before Shadow can even stop himself, his mouth is opening to sigh,   

“That’s it... shit, that feels good.”  

Sonic’s tail betrays his excitement at the praise, whipping back and forth as he doubles his efforts, letting more moans slip as he slides up and down.  

On one of the downstrokes, while Sonic is swallowing around his cock, without thinking Shadow uses the hand in mussed quills to hold him there for five, four, three, two, one-  

Sonic gasps as he pulls back, the tip just resting on his wet lips as he pants, the hot air sending shivers down the hybrid’s spine as it hits his skin.  

“Some warning would be nice.” Sonic snarks, raising a brow.  

Shadow tightens his grip in the quills momentarily, “Consider that your warning, then.” before he’s guiding Sonic’s mouth back to where he needs it. Despite Sonic’s words, he happily gets back to work, allowing Shadow to control the pace as he tugs and pushes.  

That warm, tingly feeling is gradually swirling through Shadow’s nerves, causing his toes to curl where they still rest inside his air shoes, and his earlier pains are almost entirely forgotten at this point.  

It’s on one deep push, paired with a soft grind of his hips, that has Sonic finally gagging, the harsh feeling of his throat pulling tense almost enough to topple him over the edge, a surprised gasp escaping him as he holds him there again.  

He feels Sonic’s throat work around him, struggling to regain composure as his breath comes out of his nose in harsh puffs, but a moment later and his jaw is lax again. This time when Sonic’s eyes blink up at him, they’re wet at the corners, yet that teasing glare remains.  

On a particularly deep suck, the tip bumping against the back of Sonic’s throat, Shadow’s head falls back, the hand in mussed blue quills pushing down to hear the other’s whine as he pumps his hips deeper.  

“I think I’ve found my favourite way to keep you quiet, Faker.” Shadow almost purred, looking down his nose to meet Sonic’s tame glare.  

In retaliation to the quip, Sonic pinches at black thighs.  

“I’m close,” Shadow murmurs, “If you don’t want to swallow, you should- ah, pull off now.” he warns, releasing the strength of his grip on Sonic’s head should he want to move back.  

After the hero makes no sign of moving, Shadow’s hand returns, aiding in the up and down of Sonic’s mouth on his cock, his hips moving in stuttered circles as he grows closer and closer to the edge.  

It’s as Sonic massages the fur of his hip, and with a loud and intentional moan that vibrates through Shadow’s core that he finally comes with a groan. He feels that warm and addicting rush overwhelm him and push back his pain as he spills down Sonic’s throat, a whimper escaping the hero as he works hard not to choke.  

Shadow wills his eyes to stay open, watching intently as Sonic struggles to swallow every drop, the hero’s own eyes now closed, and his brows pinched as he tries to focus. He pulls back to give kitten licks to the tip before extracting himself completely, his eyes back to watching over Shadow carefully.   

Shadow notes how a blue tail still wags rapidly, thighs pressed close together, and he fights to hold back the smirk that threatens to curl his lip.  

Peach hands grab onto his knees suddenly as the hero makes to stand up, shooting the hybrid his own cocky smile. Sonic plops himself back down on the couch, pulling on his gloves that were thrown off previously.  

“Well, that makes clean up much easier!” he grins before poking Shadow’s arm with a finger, “How you feeling?”  

Shadow hums, no words present to describe accurately the way the tips of his ears are still tingling, or the way the tension is leaking out of his aching neck.  

“Anyway, you know where I am next time you need me.”   

Just as he turns to leave, Shadow’s hand shoots out to land on a blue thigh, and he speaks up.  

“What about you, Faker?”  

This seems to stop Sonic short, turning back to face the hybrid who is currently slouched on the couch, knees still spread and cock not all the way back inside its pouch. Shadow sees green eyes flick down to it before meeting his own.  

“Huh?”  

“I said, what about you?”  

Sonic turns fully to face him, “What about me? I was just helping you out, Shads.” he states it like a matter of fact.  

Another hum rumbles through Shadow’s chest, “Right, but you seem a little worked up to me.” His eyes slide down to bring attention to Sonic’s tail which is tapping impatiently against the couch. He flicks it with a finger.  

At this, a scowl crumples Sonic’s face as he regards the other’s body language; cocky.  

“Worked up? Please.” he crosses his arms, “Sure, I had fun, but even if I was worked up, I’d just go handle it at home.”  

A shrug of black shoulders, “Why handle it at home?” he sits up slightly, “I’m feeling much better now.”  

And it was true; he had enough endorphins and adrenaline swimming around his brain to distract him from anything but his goal.  

This earns a raised brow from the hero, “Oh yeah? You don’t look in any condition to be helping me out.” he scoffs, eyes roving slowly over the striped hedgehog.  

This is my chance.  

“Why don’t you stay and find out?”  

Shadow honestly has no idea where the sudden burst of confidence stems from, but he decides to blame it on all the happy chemicals reigning chaos on his braincells right now.  

A flurry of emotions passes over the hero’s face as he remains frozen to the spot, and he seems to falter for only a second before finally settling on a lopsided grin. Sonic kneels on the couch, bringing his leg over to straddle and hover over Shadow’s lap.  

They both stare at each other, the tension between them palpable as they wait for someone to make the first move. Sonic’s attention is snapped back at the feel of two gloved hands wrapping around his waist.   

Shadow takes his time to rake his eyes over Sonic’s body, taking advantage of having him so close. Sweeping over his round chest, just begging for his teeth to bite, all the way down the slight glimpse of mussed fur between his legs. The hybrid moves one hand down suddenly, his fingers sliding along the length of the almost hidden slit and earning a surprised gasp from above him.  

The surrounding blue fur is damp, ruffled and messy with slick, a swollen clit practically begging for attention. A smirk stretches across Shadow’s face as he looks up at the hero as he strokes lazy circles over his bud.  

“I knew it, you’re   wet.” his voice rolls over Sonic, sending a minute shiver down his spine at being exposed.  

Sonic just scowls down at him, holding still as Shadow continues stroking him, spreading his slick along his pink skin. Shadow watches him as he moves a finger down to his hole, feeling it flutter as he dips a finger in an inch just to gather more slick and spread it around his folds.   

As Sonic’s brow twitches with his attempts to hold in his reactions, Shadow decides he wants nothing more than to see the blue hero shaking through his release over him.   

“Don’t hold back on my account, Faker." he murmurs as he alternates between small circles and hard grinds of his fingers over Sonic’s clit.  

Sonic shakes his head, voice muted when he mumbles “I’m not noisy in the bedroom.”  

Shadow’s eyes light up with the possibility of a challenge, never taking his eyes from Sonic’s as he declares, confidently, “We’ll see about that.”  

With a new and burning determination, Shadow increases the speed of his fingers, delighting in the wet sound of Sonic’s slick against his gloved fingers, feeling as they become more and more soaked with each stroke.  

Sonic’s eyes flutter closed as he brings his arms up to rest on Shadow’s shoulders, grounding himself to the feel of being touched so right .   

“Tell me,” Shadow’s voice sounds closer than he was expecting, breath ghosting over the fur on his ears, “How do you ‘ take care of it’ at home?”.  

Sonic’s eyes shoot open at the question, and Shadow has the pleasure of watching as red creeps over the peach muzzle, fingers flexing where they rest on his shoulders.  

“I don’t.”  

“I think you’re lying.”  

Shadow slows the two fingers lazily circling the clit to bring them to his mouth, biting the wet glove to pull it off, getting a brief taste of the hero. Then, he drags them lower, tracing through the messy folds, to press teasingly at the tight and wet hole. Again, he dips in the tip of a finger before pulling out and repeating the motion.  

“I think, you go home, and you finger yourself, until you’re shaking from it.” One long finger slides all the way in, before pulling back out slowly , “Until you can’t take it,” the finger slides back in, “until you’re desperate.”  

This drags a quiet whimper from somewhere at the back of Sonic’s throat before he can catch it, ears flat against blue quills as he fights the embarrassment. Something burns hot inside Shadow to know that he’s right, that this whole time the other had been going home just as bothered as he had been.  

Sonic, as stubborn as ever, mutters out a quiet, “No.”  

Ignoring him, he adds the second finger, pumping them in and out of Sonic’s pussy and marvelling at how soft he is, “How many times did you do it?”  

For a while the hero doesn’t give him an answer, seemingly fighting an inside battle as the lids of his eyes droop, mouth opening and closing as he struggles to find the words he wants to say.   

It’s with a crooked finger from Shadow and a resulting pleased sigh that Sonic says breathily, “Every time.”  

“Dirty Boy.” he tsks as the rubs the pads of his fingers over that spongey ridge inside the hero, biting back a smile at the feel of Sonic’s thighs clenching at his sides, “Just your fingers?”  

“ Ngh - Don’t make me say it.” the hero’s voice almost sounds pleading, his eyes closed tight as he avoids the intense stare from the hybrid beneath him.  

“I’m not making you do anything,” the deep and slow stroke of two fingers has Sonic’s head falling back, hips grinding in long circles as Shadow leans in to whisper, “But you’ll tell me anyway, because you want to.”  

There are a few moments of silence, punctuated only by Sonic mindlessly grinding on Shadow’s fingers and the wet sounds that accompany it before he speaks up.  

“A-also... my pillow.” Came the muffled voice above him as Sonic suddenly clamped a hand over his mouth, as if to stop the outpour of words in their wake.  

“Oh?”  

“Sometimes I use my – ah- my fingers, but also my pillow.” he groans as he presses his hips down in a bid to take the fingers deeper.  

Shadow’s brain almost short circuits at this new information; Sonic the Hedgehog, grinding his puffy and needy clit over one of his pillows, soaking it through with his slick while he rides the poor thing to completion. Rubbing himself almost frantically as he chases that warmth, that desirable buzz which makes his toes curl and his ears twitch as he falls deeper into it.  

At the image, Shadow lets out his own groan, resting his head back against the couch to really take in the sight above him. Sonic, with one hand still on a black shoulder and the other pressed against his mouth as he pants lightly, hips lifted high on his knees while two of Shadow’s fingers press into him at speed, soaking the fur of his hand and wrist. If it wasn’t for the bone deep fatigue that Shadow was feeling from his headache, he’s sure he would be hard again.  

Slowly, Shadow pulls his fingers out, watching in awe as he spreads his fingers and sees the slick pull apart.  

“I want to see.”  

Sonic looks down at him, eyes dazed as he tries to make sense of the hybrid.  

“Wha-?”  

Shadow’s other hand, still gloved moves up from a blue waist to curl around a peach muzzle, tilting it down until his lips ghost over the others, pressing a short kiss there.  

“Show me,” another kiss, this time longer and teasing, “I want to watch you.”  

Sonic watches him curiously for a moment, as if waiting for the other shoe to drop and a hidden prank crew to pop up out of nowhere. After a second of gathering his thoughts, a teasing grin spreads across his face.  

“I didn’t see you as the type.”   

A huff leaves Shadow as he rolls his eyes, “I’m not. But I am tired, I still need to sleep off the last of this headache.”  

Sonic pouts at this, realising that he’s going to still be doing all the work today despite Shadow’s earlier words. He looks around the small living area for a moment, before returning his attention to the hybrid.  

“Well, that’s fine. But you don’t exactly have any good pillows lying around here.”  

“This should work fine.”  

Sonic follows the line of Shadow’s eyes, tilting down to see-  

A thigh.  

His thoughts blank at this, staring down at his proposed seat and fighting the urge to whine at the thoughts muddling his brain. Shadow must see his inner turmoil because that gloved hand is on his muzzle again, pulling him in for a distracting wet kiss while the other moves to his hip.  

Hands work to rearrange him, allowing the hero to straddle just the one thigh, before moving both back to rest on his hips. Sonic’s own hands move to drape back over the hybrid’s shoulders and grasp at two-toned quills, taking a steadying breath before moving his hips down.  

A stuttered sigh leaves his mouth as sensitive skin makes direct contact with the glossy texture of Shadow’s fur, hips moving in an excruciating slow grind to gauge the feel and strength of the muscle underneath.   

Shadow watches as the hero takes his time, hips at first stuttered and tight before he's dropping his full weight down onto the thigh. Sonic makes one long and slow drag, from the mid-thigh all the way to the jut of Shadow’s hip, letting out a low and needy groan at the feel of friction against his clit.  

“That’s it, good boy.”  

“S-Shit. You can’t say that.” Sonic gasps.  

Shadow raises a brow, “You don’t like it?”  

A quick head shake, followed by hips picking up speed as he grinds his wet pussy along the firm thigh, “I l-like it. That’s the problem.”  

For a while, Shadow was content to just watch the blue hedgehog grind himself languidly against his thigh, listening to his soft sighs and allowing fingers to tug on his white chest fur. But the need to sleep was slowly creeping up on him, so it was with a low voice that he asked,  

“Chaos, what would they think?” he moves in closer, speaking his next words into the peach fuzz on Sonic’s chest, “Everyone’s favourite hero, no better than an animal, humping away like a dog .” he tsks before biting down over a perky nipple.  

A strangled moan escapes Sonic at those words, the pace of his hips increasing.  

“No-”  

“You’re so wet, I know you like it.” a hot tongue laves over the teased bud, sucking it into his mouth, “You can’t hide it from me.”  

As he says this, one of Shadow’s hands strays from its spot on Sonic’s waist, moving to smooth over the fur at the others lower back before making contact with a wagging tail. Slowly at first, he curls the coarser fur of the tail around his fingers, playing with it idly and delighting in it twitching with every roll of Sonic’s hips.  

It’s after a slow grind forward that Shadow makes his move, gripping onto the tail firmly and using the leverage to pull Sonic’s hips back, watching in awe as Sonic’s clit drags across his thigh.  

The noise that leaves Sonic’s mouth has Shadow biting his own lip in a bid for control, the hero verging on desperate and needy as his head tilts back, mouth open and lax as he pants openly.  

“Fuuuck! Chaos, again.”  

Shadow grins as they set into a rhythm, Sonic moving his hips forward rapidly, only for Shadow to tug hard on his tail, dragging his forcefully back across his thigh. Before long, a continuous stream of moans are slipping past Sonic’s lips, no care for how noisy he’s been.  

“Did you think about me?” Shadow moves his other hand up to squeeze roughly at Sonic’s plump chest, pinching a nipple between his fingers before alternating, “While you fingered yourself, were you imagining they were mine?”  

Blue quills shook furiously, Sonic’s head snapping back and forth with his denial. However, betraying that was the way blue thigh’s clenched or the way Sonic’s hips increased their pace.  

“Y-You wish.”  

“Oh, I don’t have to wish, I know .” Shadow let a small groan escape him at the thought of Sonic, usually so careful with his own image, reduced to nothing but a wet and whimpering mess as he fingers himself to the thought of the hybrid.  

“Shit, Shads. Yes...Ahn- yes...”  

Shadow’s eyes trail down to focus on the movement of Sonic’s hips, noting the wet and sticky slick coating the fur on his thigh.  

Shadow almost coos, “Look at the mess you’ve made.”  

“Sorry- sorry! Ah! Sorry... Sor-” the other’s voice is almost slurred as he mindlessly moves up and down that toned thigh, eyes glazed and unseeing as he seeks out bliss.  

“Did you like hearing me moan?” Shadow moves forward to press wet kisses onto Sonic’s neck, making a slow path up to his open mouth, “or did you just like having me down your throat?”  

“Mhhm!”  

As Shadow’s mouth captures the other, Sonic makes no effort to kiss back, mouth ajar and tongue lolling uselessly as Shadow licks happily inside, swallowing every moan and cry from the hero.  

“I’m close so close don’t stop-”  

“Such a good fucking boy, Sonic. Keep going.”   

Shadow has to will himself to stay contained in his pouch, feeling the stirrings of his own arousal creep back.

It’s while Shadow is busy licking the roof of his mouth, fingers pinched around a nipple, other hand bruising Sonic’s hip, that the hero suddenly stutters to a stop, pressing his weight down hard as he starts to shake through his release.  

The moan that echoes through the room has Shadow’s own lashes fluttering shut as he bathes in the sound, feeling wetness soak into the fur of his thighs. Sonic’s entire body feels like its thrumming, minute vibrations running through his overworked muscles as he sits limp on Shadow’s lap.  

Shadow listens to the tune of Sonic’s quiet pants as he continues to lick over the round chest in front of him, stopping to bite every so often. After a few moments of sleepy silence, in which Shadow now nibbles softly at the other’s lips, Sonic murmurs dreamily,  

“So much for no clean up today.”  

Shadow can’t even bare to think about the clean-up, especially on the couch, scared to see just how messy the fabric below them got. Thank Chaos it was a black couch so hopefully any stains could be hidden from Rouge.  

Now that the adrenaline was starting to wear off, Shadow’s fatigue was at the front of his mind, wanting nothing more than to curl up and pass out.

Sonic, observant as ever pushed up with a sigh, and distantly Shadow could hear him moving around the apartment. Shadow took no mind, mumbling something about how tired he was before tipping his head back against the couch and succumbing to sleep.

When he awoke, confused and in his own bed, he opened up the unread message on his phone from Sonic.

Sonic:
If Rouge asks, you spilled a drink on the couch and it's wet because you cleaned it.
(btw I cleaned it :P)

Shadow:
Well, it was your mess.

Sonic:
Yeahhh but u called me over sooo
Who's fault is it really?

Shadow left him on read.

G.U.N was baffled.   

How could their perfect little creation be experiencing something as mundane as... headaches? It made no sense even to Shadow; he really had never experienced anything like them before.   

All his previous injuries had been inflicted upon him by others, the pain an expectation, and usually healed and gone by the morning. This, however, seemed to be becoming a more frequent problem. He could maybe only go a week before it felt like he was splitting at the seams.  

And as good as Sonic’s help has been, if Shadow really wanted to ensure that things didn’t get too weird between them, he needed to get his headaches under control. The sooner the better.  

So, he had told G.U.N. Except now he was regretting that.  

He sat in one of the medical bays in the headquarters, the stale fluorescent lights not helping with his new problems as they blared above him. They cast a horrible white-blue glow on everything they touched, making Shadow squint.  

Shadow sat stiffly on one of the examination chairs, trying to tune out the muffled talking coming from the numerous staff working on him. His quills were puffed out and tense, betraying just how uncomfortable he was when it came to these things.  

No one alive knew much about the hybrid Shadow, only what scraps had been left behind in Gerald Robotnik’s diary, everything else destroyed during the raid on the ARK. And so, they tested him. And tested him. Until there was almost a constant ache in his arms from where he had been prodded and had blood drawn, until his eyes were dry from having lights shone inside.  

It’s after almost four days of constant testing that he’s allowed to return home, practically dragging himself back to the apartment. As he approaches, he can hear the distant thump of music coming from the club on the first floor as party goers arrive to dance their stress away.   

Shadow walks past the entrance to climb the steps up to the residences. He thinks idly about all the work he needs to now catch up with a lets out a rattled sigh. In his agitated stupor he barely notices the presence of someone else until he spots a red shoe out of his peripheral.   

“I’m not in the mood, Faker.” he deadpans.  

Sonic rests on the nearby wall, lounging without a care in the world it seems.  

“I brought a gift. I actually came by a few days ago but Rouge said you were working.”  

“I was.”   

“Four whole days?” A quiet whistle echoes in the hall, “That’s rough. But I’ve got just the thing for you.”  

As Shadow finishes tapping in the code for his door, he aims to step inside and close it on the annoyance, but before he can even step through the threshold a blue blur is moving past him.  

An exasperated sigh leaves Shadow’s mouth as he follows the other into his apartment, watching as the other makes himself comfortable on the couch.  

Shadow walks past him into his bedroom, taking no mind of the look of offense that flashes on the hero’s face at being ignored. He steps around his bed and goes straight to the desk in the corner of the room, plopping himself down heavily on the chair.  

Sonic is strolling in not even a second later, leaning his butt against the desk as if he owns the place.  

“Sonic. I still have work to do, just go.” he growls out.  

“But shads,” he whines, using a finger to poke at Shadow’s shoulder, “I did some more research.”  

Shadow can’t help the eyeroll as he powers on his computer, “Maybe you should just stick to being a hero.”  

“Not heard you complaining about my ‘research’ yet.”   

Touche.  

Shadow tries his best to ignore the other, hoping that the lack of attention will drive him away. It’s after about three minutes or typing, the other just watching him, that he gets the first whiff of something sharp and minty.  

The unusual smell catches his attention immediately, so different to Shadow’s own scent of lavender and leather, or Sonic’s more natural and earthy scent. His head moves on its own, seeking out the source of the smell. As his nose passes by Sonic, still leaning on his desk, he almost winces at how strong the smell becomes.  

He looks up at the hero with a disgruntled frown, mood soured further upon seeing the shit-eating grin plastered on the other’s face.  

“Why do you smell like toothpaste?”  

At this Sonic splutters, “Tooth- Toothpaste!?”  

“Mhmm. Smells like toothpaste. And you’re polluting my room with it, so piss off.”  

“It’s peppermint . You know, the popular essential oil linked to helping with many ailments, including severe headaches.” he states as if reading straight from an online article.  

Shadow looks at him blankly.  

“Right. But I don’t have a headache right now. So why are you here?”  

Something unreadable flashes across Sonic’s face before he settles for a scowl, hand coming up to hit the hybrid on the back, hard.  

“Preventative measures, Shads. It’s all the rage for those poor souls with self-destructive brains. Like you!”  

“Well... I’ve had a smell. All better. Leave.” he waves his hand dismissively as he continues working.  

“You’re no fun, you know that? There’s more, I promise I won’t distract you.”  

Shadow only responds with a grunt, passed the point of caring, knowing too well that the faster he lets the other finish what he needs to do, the faster he will leave. It’s as he’s writing up a report that he feels something brush his leg, rolling his chair back slowly to glare at the pair of glowing green eyes under his desk.  

Shadow doesn’t even have words prepared for him, just shooting an irritated glare his way. When all he gets in return is a sweet smile, he sighs.  

“You said you won’t distract me.” his voice is low, warning.  

“OK... let me rephrase then,” the hero blinked up at him innocently, “I’m only going to distract you for one minute.”  

“Sonic. What exactly is this preventative measure.”  

“Gonna give you a continuous supply of endorphins. With my mouth.”  

He says normally. As if that is a normal thing to say to your rival. Your rival who you occasionally jerk off until his braincells restart.  

Shadow just stares at him, at a loss for words, deciding to turn his attention back to his work.  

“You have one minute.”  

Gloved hands come up to grab the chair and pull it back against the desk, Shadow’s knees back under and spread with Sonic in between.   

Sonic’s hands come up to where Shadow’s pouch lies, making quick work of the pressure points to release his flaccid dick. Shadow barely has a second to feel the cold air of his room against the skin before a warm and tight mouth is engulfing him.  

A surprised grunt escapes his lips before he can stop it, the hands on his desk clenching as he counts down the seconds before he can kick the other out. Sonic’s tongue makes itself comfortable on the underside of the cock, lips sealed tight around his teeth but no real suction, jaw relaxed.  

And then nothing.  

No sucking, no vibrations, no movement, just a warm mouth sealed tight around his cock. Shadow chances a look down, noticing the hero’s eyes are closed, ears flat against his quills and his hands resting neatly on his own lap.  

He looks almost peaceful.  

After a few more moments of nothing happening, Shadow cautiously returns his gaze back to his computer. He wills himself to focus on anything but the warm and wet heat around him, not Sonic kneeling under his desk so willingly.  

And despite Shadow’s earlier protests, he gets his work done. He writes up the reports for the previous mission he had overseen, he checks over all his missed messages from the last few days, and he organises his work week around the upcoming lab appointments he has.  

Meanwhile, Sonic sits obediently, jaw wide and cheeks full.   

Slowly, painfully slowly, he can feel himself getting hard, just from the thought of Sonic being so good for him.  

After almost an hour of this, Shadow feels the other shift slightly, his tongue inching to the side and then suddenly the hybrid is tensing. A muffled moan makes its way out of his mouth as Sonic swallows around him, the tight throat kissing at the tip of his dick.  

“Ghhk !”  

He reaches a hand under the table to cup Sonic’s muzzle, noting how wet the fur is there from the saliva escaping the seal of his lips. The hero’s eyes blink open, looking bleary and squinting against the light coming from behind Shadow.  

“I’m all done with my work.” he declares.  

That tight throat swallows around him again, teasing. A drawn-out sigh forces its way out as Shadow’s hand finds its way to the back of Sonic’s head, pushing down lightly to encourage him to go deeper.  

A black nose bumps into his stomach, and he keeps him there, relishing in just how well he takes his cock with no complaints. He can feel the way Sonic’s throat fights to prevent the gag building up, the tip of his cock bumping the back of his throat with every attempt.  

The first gag rings through his ears, his hand pulling Sonic up to pant harshly for breath before pushing him flush again. A muffled whimper vibrates down his shaft and he watches in awe as Sonic’s lashes flutter closed.  

As Sonic continues to move up and down Shadow’s shaft, he becomes aware of the fact that his nose no longer presses against a taut stomach on each downstroke. His lips feel more stretched with each slide and the urge to gag tickles at his throat more often.  

Blearily he opens his eyes, noting with surprise just how big Shadow’s shaft had become, intrigued by the thick gland at the base that was now hindering his movements. Seeing his confusion, Shadow removed his hands from Sonic’s head to allow him to pull off.  

“...What’s that?” he panted.  

“It’s my knot.”  

“Huh? Why have I never seen it before?”  

Shadow shrugs, “I probably wasn’t in the best mindset before. No headache today, remember?”  

“...Right.” He eyed it wearily, taking note of just how big the gland was.  

“Don’t worry, just focus on the shaft. Pay it no mind.”  

And with that, hands were back in his quills, carefully bringing his lips back to the tip. Sonic opened wide to slide his mouth back down, this time his nose bumping with the round knot as he bottomed out. Each rub against it caused Shadow to twitch inside his mouth, dragging a pleased hum from the hero.  

“You know what I think, Faker?” His voice takes on a smug tone as he meets Sonic’s throat with a thrust of his hips, enjoying the gag that closes around him, “I don’t think you wanted to help me at all today.”  

Sonic’s eyes flash open to stare up at the hybrid, watching him curiously as he continues almost choking on the cock down his throat.  

“I think you just wanted something in your mouth,” Shadow punctuates the sentence with a deep and firm thrust of his hips, “You love having your throat full.” And Shadow watches as Sonic’s eyes roll back, his hips stuttering against the hand resting on his lap.  

Bingo.  

An almost desperate whine sounds out as Shadow pulls his head back, allowing him to rest for a moment as he catches his breath. While he’s focused on breathing, Shadow moves his socked foot to nudge at blue knees.  

“Spread your legs.”  

Sonic’s thighs spread open from where he kneels, Shadow’s leg moving to rest between them. Slowly, he slots his cock back into the open mouth, thrusting shallowly as the other still recovers.  

“Well?” Shadow’s voice is low, his eyes burning into the sight below him.  

Sonic’s hips are moving forward in an instant, straddling the socked foot between his thighs and pressing down to rub himself over the new material. A stuttered moan leaves him, which is soon silenced by Shadow pushing in deep again, both hands coming up to cup his muzzle and hold him still while he thrusts into his mouth.  

“Chaos, you’re so  dirty .” He proves his point by dragging a thumb through the saliva tracks mussing his fur, smearing it around, “I wish you could see yourself. I wish everyone could see how messy you are.”  

Glazed eyes roll uselessly in Sonic’s head, focused only on the constant thrust of his own hips as he rubs his clit against Shadow, moaning loudly from under the desk.  

“Yes, that’s it- nghh! So good, Sonic.”  

Shadow pushes down on the back of the hero’s head once again, holding him there, rejoicing in the muted gags that spill from peach lips as his airflow is restricted. His hips move almost furiously as he humps the bottom of Shadow’s leg and it’s only once those thrust begin to slow, becoming almost drowsy, that he pulls Sonic up so only the tip rests inside.  

As Sonic sucks in air, his hips stutter to a stop, thighs clenching around Shadow’s leg as he finally cums, shaking through it almost violently as he grinds down harshly to prolong his pleasure.   

“Mmhgg-A h! Ahnn Shadow yesyesyes.” he croaks out weakly, voice sounding wrecked.  

It’s as Sonic’s warm and harsh breaths flush over the tip of his cock that Shadow stands on the edge of his own release. As he takes deep breaths, the fresh scent of peppermint floats back into his consciousness, enveloping him into relaxation. As he relaxes into the sensation, the flat of Sonic’s tongue moves against the tip of his cock, dipping into the slit for a second before peach lips are curling into a smile as Shadow pumps his release into his open mouth.  

Shadow moans loudly, watching as it pools on a waiting tongue before being swallowed easily.  

Sonic plops his head down on a black thigh, blinking the fog away as Shadow’s hand comes up to scratch absentmindedly behind one of his ears. Something close to a purr rumbles through him, but neither of them mention it, simply breathing heavily into the room while they recover.  

It’s as he’s musing over the last hour that something close to a laugh finds its way out of Shadow’s mouth. Sonic looks up at him with a questioning brow, wondering what there could be to laugh about.  

“Finally see why those preventative measures are ‘all the rage’.”  

“Right? Aren’t you glad I’m so good at doing my research?” Sonic sighs, happy to continue resting on the floor under the desk, so long as Shadow’s thigh remains his cushion.  

Shadow looks down at the other, still lazily mussing the blue fur over ears and letting the afterglow wash over him, content to just exist there together.  

“Lucky me.”  

Chapter Text

Shadow knew he was in trouble. Nothing involving Sonic the Hedgehog could ever be no big deal.  

The visits had become more regular. Even as G.U.N tested out more solutions that saw the frequency of his headaches decrease, the visits increased. Sonic would come over unannounced more frequently, hiding under the guise of “ preventative measures” , just happy to help a friend out.  

A simple handjob was now a rarity, Shadow becoming much more accustomed to having his brain turned to mush by a skilled mouth and a tight throat. And it was becoming just as likely for Shadow’s fingers to be occupied inside Sonic, usually ending their time together with Sonic shaking around the palm of his hand, although on a few occasions he did get to witness Sonic as he drooled onto one of his pillows while he rubbed himself raw against another.  

Shadow was aware that something had changed and a part of him feared that the dynamic was no longer just about being a good Samaritan. Yet despite this, he was hesitant to stop.  

Part of him wanted to ask Rouge about it all, but the sane part of his psyche not bombarded with pictures of Sonic between his knees knew better. She would meddle and just the idea of it was enough to keep his mouth tightly shut.   

And was the arrangement really all that bad? No. Did he want the arrangement to end? That was where he was stumped. On one hand, Shadow had enjoyed their previous dynamic; they were finally civil with each other, and even though they still fought it was never anything serious enough to be worried about.  

On the other hand, if Shadow really had to admit it, he was starting to like seeing Sonic so... Unguarded. Knowing that he got to see the Hero of Mobius willingly warming his cock? There were no words to describe it.  

If he had to be honest ? Shadow was starting to think that he didn’t really mind leaving himself so unguarded around the hero either.   

And that ? That new thought is what worried him the most about this whole thing.   

He hated to admit just how much his thoughts had begun to wander after their time together, eager to not only see Sonic in the walls of his apartment, but also out at Green Hills, or maybe even Station Square. A cafe? How about going for dinner -?  

This was another thing he wished he could just talk to Rouge about; Mobian customs were often lost on him, especially when it came to more sensitive topics like this. She would know just the right way to go about this strange arrangement, preventing any upset.  

But he didn’t have Rouge for this, so he ignored it. He let it go on and on. Shadow would send a message even when his head wasn’t hurting and Sonic would be there, to prevent the headache that both knew would not be coming. Or Sonic would be at his door, ready to kneel on the floor of the living room or under his desk while he warmed his cock.   

To prevent the headaches, of course.  

But then, it finally came to a head.  

They were sat together on the couch, making out during one of the rare times Sonic was just using his hand, when suddenly hands were wandering. One of Shadow’s hands were pressed tightly into quills as he tugged needily, the other moving at an unhurried pace between Sonic’s spread legs. Meanwhile Sonic’s free hand was fisted into the white fluff at the hybrid’s chest.  

When the other kneeled up onto the couch suddenly, the hybrid thought nothing special of it as his fingers slipped free, expecting Sonic to straddle his leg while he continued working. Instead, Sonic’s leg came up to straddle over his full lap and his arms draped over the back of Shadow’s shoulders, both of his knees squeezing for a moment at Shadow’s thighs before he is sitting himself down.  

The first wet grind of Sonic’s folds along the length of Shadow’s cock sent a shock through his system, his eyes flashing open as he pulls back from Sonic’s lips to gasp. The other’s eyes are closed, entirely focused on his task of grinding back and forth over Shadow’s shaft as it lay in his lap.  

As Shadow’s hands move to hold at a blue waist, planning to hold him still so he could catch his own muddled thoughts, the shaft of his cock rubs along Sonic’s clit and the resulting moan is enough to thwart his plans. Instead, he sits back and watches as the hero drives himself to desperation in his lap.  

All the while, Shadow’s thoughts had started to take a dangerous turn.  

What would it feel like to be inside him? He always gets so tight when he’s fingered, would it be the same? We could do it right now, all he has to do it put it in put it in put it-  

He closes his eyes and allows himself a moment of weakness, a moment to imagine just what it would be like. To finally go all the way. Sonic riding him, the faces he would make, the noises-  

It was with a cry that he had finally come, making a mess of Sonic’s fur as he continued to grind across his lap, not content until he was hitting his own peak too. They sat there for a few minutes after, catching their breath before Sonic was up and making his way to clean up like always.   

“A little messier than usual, my bad!” Sonic grinned over at him before throwing over the pack of wipes he was using.  

Shadow sat there in a stunned silence as he watched the hero go about his day normally, stepping back into his shoes, the former still covered in his own mess.  

“I’ll swing by in a few days!” He calls, before he’s waving and the door is closing.   

And so, Shadow had sat there, trying to make sense of just what had occurred in his brain not even ten minutes ago. Had he had some less than savoury thoughts about the other hedgehog before? Sure, but never to this extent and never so... vivid. The want that had been circulating through him had almost been tangible.  

It was getting harder and harder to pretend that he was OK, that this was casual, to pretend that he didn’t like Son-  

No.  

The most concerning thing was how easy it had been for the other, to just leave with nothing more than a wave and a promise for more. Sonic had been just fine about it. Meanwhile, Shadow was fighting off the urge to pin the other down and take him on the couch.  

It was with a long sigh that he had cleaned himself off, before gabbing his phone and making the necessary call.   

He had been compromised.  

The G.U.N labs were just as cold and bleak as he remembered, often leaving him under stimulated enough to start stirring up unpleasant memories of the past. Rouge had brought him books at his request as a method of distraction.   

Shadow had been in the labs for almost two weeks and counting, per his own request. He would remain here until he got what he wanted. Countless tests, countless new medicines tried which had been developed solely for him.   

He’d had his last dose of the new medicine they’d developed just two days ago, so now he was tasked with waiting for any side effects, or for any headache symptoms to appear.  

One thing that two weeks in a lab had given him was plenty of time to think. To think about just how out of control he’d let things get with Sonic, how irresponsible he’d been. This was his rival , someone he already had a very shaky balance with, someone he... respected?  

The worst part of this whole ordeal, the thing that honestly bothered Shadow the most, was how he seemed to be the only one affected by any of this. Sonic’s behaviour never changed, not once. He was always the same, carefree hedgehog as always, leaving with a smile and a wave after they both got what they needed. If anything, Shadow was envious of him and his ability to not get trapped in his own head.  

While Sonic was probably at home lounging around after their visits, Shadow was mulling over all the different sounds the hero makes when he’s got three fingers inside him. While Sonic was busy hanging out with his friends, Shadow was thinking about just how badly he wanted Sonic in his bed.  

How pathetic.  

It was as he was painfully raking through his thoughts that a lab technician finally arrived, a bland looking woman who barely looked up from her clipboard while speaking to him.  

“Good news, Agent Shadow. You’re free to go.”  

“And what about the headaches?”  

“That shouldn’t be a problem.” And then she was gone.  

Shadow stood there for a few moments longer, trying to process that this was all over, finally.  

He just needed to speak with Sonic.  

It was dark in Green Hills when Shadow finally heard the distant sound of shoes running closer, his back turned as they skidded to a stop just behind him.  

“Wow, long time no see!” Sonic chirped, bouncing around as he drew nearer, stepping into Shadow’s view, “I almost thought you’d been spirited away, y’know?”  

Shadow just regarded him blankly for a moment, fighting so hard to keep his expressions schooled into his usual look of disinterest, despite how hard his heart was beating in his chest.  

“What kinda race do you fancy today? I was thinking maybe up to the peak and back again?”  

“I don’t have time to race today.” He stated plainly, feeling almost robotic.  

Sonic raised a brow, lips pulling into a pout, “Huuh? OK... So, what then?” A teasing grin split onto his face as he stepped closer, “Don’t tell me, did you miss me?”  

Shadow let out a slow and agonising sigh.  

“Let’s stop this.”  

Sonic blinks, “This...?”  

Shadow fought with his tongue to move, his mouth to open, just something .  

“The... Arrangement. I got my tests back from G.U.N, I won’t be having any headache problems from now on. So, we should stop.”  

Right?  

Sonic watched him carefully for a few silent minutes, eyes burning a bright green against the dark sky behind him. It was silent for so long that Shadow almost lost his nerve, tempted to just Chaos Control himself home, but eventually Sonic seemed to come back to himself.  

“Oh. That thing,” Sonic’s hands shot to his hips, nodding his head along as if in thought, “Mhhm. That’s fine, I’m just glad I could help.”  

This is so easy for him.  

“I... Yes, thank you.”  

“Of course, dude. What are friends for, right?” His smile was bright, almost mocking with how carefree he was as opposed to how Shadow felt currently.  

“Friends?” He murmured absently.  

“Yeah, we’re friends! I thought that was obvious.”  

“Do you help all of your friends like that?” Shadow scoffed, something strange settling heavy in his gut at the thought.  

This seemed to halt the hero for just a millisecond, his happy expression faltering for one measly moment, before it was back in full force.  

“Only the ones I really like.” Sonic shrugged, tapping his shoe on the ground before suddenly he was turning, “Anyway Shads, let’s race another time, yeah?”  

And in a second, he was gone, leaving behind only a blue trail and a hybrid with a very sour taste in his mouth.  

Friends.  

They were friends.  

And Sonic cherished their friendship, really.  

He cherished their friendship so much, that he had offered to help his friend in a time of need, because he couldn’t bear to see his friend hurting and that’s just what friends do.  

It was just by pure coincidence that while helping his friend he was blessed with the sound of their soft moans, or the sight they made when they were close to the edge, and the knowledge of what their fingers felt like when they were buried deep in-  

Sonic suppressed a shiver at the thought.  

And really, he had offered to help because he truly wanted to do just that. How could he race and have the occasional fight with his rival if he was too fatigued all the time? At the time it had made perfect sense.  

Honestly, he had been surprised to even get the first message from Shadow, blinking down at his phone as if it was threatening to bite. But when he had arrived and seen just how much he was needed, Sonic had dived headfirst into the role.  

It’s just what he did.  

But there was only so much nonchalance that one could fake. He hadn’t lied to the hybrid, he really did go home after and think about long black fingers while his own were at work. Then, it had followed him out of the bedroom, and suddenly he was thinking about Shadow while sitting with his friends. Or while running through Green Hills. Or-  

It was a problem.  

So yes, Sonic was happy that Shadow had managed to fix his headache dilemma. It meant that they could devote all their attention back to more important things, like stopping Badniks and finding Eggman.  

But the following days after Shadow had ended their arrangement, the hero saw himself fighting, possibly for the first time with his own thoughts. When he was alone, he was thinking about Shadow. He was thinking about his low voice, his hands, the way his brow would twitch when he was annoyed at something he said, that damn smirk.  

It was a problem.  

And it was a problem he had tried to ignore for so long, and now they were just going to be friends ?  

No.

On the fifth night, while he was tossing and turning in bed in the early hours, mind clouded with those thoughts, he snapped. He was stumbling up, grabbing his shoes, and before he knew it, he was outside a familiar apartment.  

He paused, his brain finally catching up with the rest of his body as he contemplated just what his next steps were. It was 1am, everyone was probably asleep. He should go home-  

Sonic’s hand rapped rapidly on the door, his foot tapping impatiently as he waited for someone to open it. Realistically he knew that he could just enter using the door code, like he had many times, but something about that just didn’t feel right anymore.  

It was as he was musing over this that the door swung open, greeting him with a sight of the hybrid and his frustratingly blank face. This just caused another bubble of anxiety to sit heavy in his stomach, but he pushed it down to focus on his goal and stepped into the apartment.  

Once the door closed, Shadow turned slowly, the only evidence of his confusion at seeing Sonic here so late at night.  

Before Sonic had time to think, or to back out of what he needed to do he spoke, loud in the quiet and dark living room.  

“I don’t want to be friends,” He places his hands on his hips, almost giving off a cocky attitude if not for the way his eyes couldn’t leave his own shoes, “I thought I could do it, but I can’t, man.”  

“Huh?”  

The sound of the others low voice finally gets him to raise his head, quirking a brow.  

“‘Huh’? What’s there to be confused about? I said I don’t want to be friends.”  

Shadow stands deathly still, the only sign of him experiencing any emotion being the way one of his ears flick down for a second before returning to normal.  

“So... What, then? You came all the way to my house at 1am to fight?” Shadow’s voice is low, edging on a growl.  

Sonic stares at him blankly for a moment, truly taken off guard. His face is stoic as he fights the inner torment threatening to overtake him. He settles on an annoyed frown as he sighs,  

“Aren’t you supposed to be the smart one here?”  

Shadow watches in confusion as the hero starts to pace, shoes hitting the hardwood in light taps as he increases in speed.  

“Listen. I’ve seen what your face looks like- what you sound like when you’re on the edge too many times to be your friend .” He almost spits the last word, “I literally grinded on your leg and you wanna be friends!?”  

At the accusation Shadow steps closer, his own frown verging on a glare as he processes the other’s words.  

“Sonic. In your own words , you said ‘Yeah, we’re friends. What are friends for’. Isn’t this what you wanted?” Shadow’s tone rises in pitch as he imitates Sonic’s words, mockingly.  

At this Sonic stop's dead in his tracks, throwing his hands up in the air.  

“I lied!”  

Expelling a slow breath to collect himself, Shadow hesitantly takes another step forward, not wanting to set Sonic off pacing again.  

“I am not used to Mobian social norms or needs, I didn’t mean to-”  

“These aren’t Mobian needs. They’re my needs.” The emphasis on ‘my’ almost sounds hurt, embarrassed even as Sonic’s hands come up to his quills, tugging on them in frustration, “I need it so bad that it hurts, Gaia.”  

Shadow takes another step closer, standing just in front of the tense hero, who’s face is crumpled in agitation with his eyes squeezed shut, and who just looks so... sad .  

“What do you need, Sonic?”  

“I-I... I need... I can’t say it.” He mumbles out with a forced laugh, voice quiet and anything but ‘Sonic the Hedgehog’ as sour pits of anxiety fill his throat, making it hard to speak.  

Something stirs in Shadow at the other’s hesitation, not used to seeing Sonic so far detached from his usual persona.  

“Out with it. Why are you scared?” He snaps.  

Sonic’s eyes flash open at the tone and he finally makes direct eye contact.  

“Because I obviously need whatever this... thing between us is more than you do.” 

Shadow crosses his arms, a scowl on his face.  

“Don’t speak for me.”  

“Well, you won’t speak for yourself. So, someone has to do it!” He jabs a finger into Shadow’s chest.  

“Fine!” He barks, pushing hard on Sonic’s shoulder almost out of habit, “You want to know? You want to know how hard it’s been for me to try being normal about this entire thing?”  

“Oh sure, go on! Tell me why when I came looking for you after you vanished , Rouge told me you spent two weeks hiding away at the G.U.N headquarters.”  

Shadow blanched for a moment, raising a brow.  

“Hiding? I wasn’t hiding-”  

“Riiightt... You just go there for fun?” Sonic scoffed, his feet moving again as he started pacing once more, “And here I thought it was just because you’re a coward.”  

The word coward seemed to snap something out of Shadow and his hand reaches out suddenly to grab at the moving hedgehog, his tight grip forcing the other to a stop.  

“Coward?” He spat, pulling the hero closer, “Sonic, do you really think this was only about the headaches? For the last two months I’ve barely had any headaches, but I still messaged you and I still let you in and- and it felt wrong to do that.”  

“But you weren’t-”  

“Let me finish.”  He growled, “Yes. I was... nervous. I ended things because it was becoming too much, and I couldn’t keep calm about this. You seemed so at ease about everything, but I... I couldn’t keep things normal anymore.”  

Shadow ends his rant with a sigh, red eyes never leaving green.  

“I don’t want things to be normal, Shadow.”  

There’s a long moment of hesitance before, “Neither do I.”  

The hero takes a moment to look at the hybrid, to really look at him. His ears pressed flat against his quills, yet his eyes are intense, his brow almost locked into a glare as he waits. It feels like they're on the precipice of something, so close to finally being on the same page, but one wrong move and he’s skipping a chapter.  

“Tell me Sonic, please. What do you need?” He pleads.  

And so Sonic swallows away the final pit of dread that had been sitting heavy in his throat, not wanting anything to muddle or silence his next words.  

“I need you. All of you. Not just sometimes, but all the time. And... I don’t like the arrangement. I don’t want anything to be conditional.”  

“I can give you that, easily.”  

Shadow leans closer, one hand coming up to rest at Sonic’s nape.  

“Is that the only thing you need?”  

A stuttered shake of the head.  

“I need you to kiss me, because you want to, not because you feel like you have to.”   

Shadow didn’t hesitate to press his lips against the other’s, leaving a simple kiss there before pulling back. He had to hide his amusement once he saw the look on Sonic’s face.  

“Dude. That’s it? I just poured my heart out over here.”  

The hybrid tsks, “I’m not going to make out with you standing in the middle of the living room.”  

“Good job I know where the bedroom is then.”  

And then he was gone, left with a streak of blue.  

Eager.  

Shadow walked over to his room, stepping over the red shoes that Sonic had just abandoned in his exit in the middle of the hall, not having it in him to scold for it right now. Now, Sonic sits where Shadow had been before the interruption tonight, upright with his head against the headboard, resting among the pillows.  

He wasted no time in sliding onto the bed and sitting beside the hero, Sonic’s hand immediately coming up to grab at a tan muzzle and pull him in. He nosed along the fur of Shadow’s jaw for just a moment before moving up to capture his lips, nothing like the chaste peck he had been left earlier.   

Sonic finally took his time to be selfish as he kissed the hybrid, not having to worry about Shadow’s fatigue or if it was improving his condition, just being allowed to feel Shadow. Distantly, he could hear the sound of his tail thumping against the sheets of the bed as the other licked into his mouth, taking control of the kiss with a nip to his lip.   

Sonic happily relinquished control, letting Shadow’s hands on his muzzle tilt his head however he wanted for the best angle. He hummed happily at how easy it was, kissing each other with practiced movements.  

They continued like this for a while, making out unhurried while their hands petted at each other. Sonic especially liked it whenever Shadow’s hands would roam over his chest, taking their time to pinch at the buds hiding under his fur, earning a gasp each time.  

Slowly, Shadow pulled his lips away, smirking as Sonic moved forward to chase him, not quite ready to pull apart. He took note of Sonic’s usual tells of arousal; flattened ears twitching against quills, thighs tightly closed, tail moving rapidly in excitement.  

The hybrid moved to nuzzle against one of Sonic’s ears, smirking at the sight of a red blush painting the tips as he pressed kisses there.  

“What else do you need, Sonic?”  

It took a while to get a response, the other seemingly happy to just sit and get attention from the hybrid. Sonic brought up one of his hands to fist in the white fur on Shadow’s chest that he loved so much.  

“I need your mouth.”  

“Hmm? Where do you want it?”  

As he spoke, he moved his hand down to cup back at Sonic’s chest, “Here?”  

Sonic shook his head, despite how tempting the offer was.  

Shadow’s hand moved down to caress at a peach navel, before landing on one of the hero’s hips, rubbing a thumb in lazy circles.  

“Here?”  

“Don’t be a dick.” Sonic shot a lopsided grin up at the other, before spreading his thighs open, “Are you gonna give me what I need or not?”  

Shadow’s eyes immediately zeroed in on the sight of wet, pink folds, just begging for attention. Before he knew it, his thumb was moving to stroke circles over Sonic’s clit, already too familiar with the perfect rhythm to get the hero melting back into the sheets.  

Shadow slotted himself between spread thighs, resting on his elbows as he took in the right before him.  

“It would be rude not to.”  

His mouth latched onto one of Sonic’s inner thighs, sucking and kissing over the sensitive skin while his thumb still worked, delighting in the occasional twitch he felt under his mouth. He took his time to lather his attention over both thighs, hip bones, before dipping down to meet with Sonic’s wet core.  

Shadow drew back his thumb for a moment, pausing to take off his gloves, before grabbing at the back of tense thighs to spread them wider. It suddenly occurred to the hybrid that this was it; this was the point of no return, a line they had never crossed.  

Shadow looked up to meet Sonic’s own stare, “We... If I do this, we can’t go back to how things were before. Tell me to stop now, if that’s what you want.”  

At hearing nothing but silence, Shadow inches forward, stopping just shy of his prize.   

“I mean it. I can’t pretend to just be your rival. I need this .”   

That drags a needy whine up from Sonic’s chest, a small tremble running through his legs as he waits in anticipation.  

“Please, Shadow.”  

Shadow is moving and his tongue presses flatly against the pink, spread folds from the centre, licking all the way up slowly to land on the clit, giving it parting kiss before repeating the action. A quiet moan escapes the hero’s parted mouth; green eyes locked onto every action as he watches the hybrid eat him out.  

Lewd and wet sounds fill their ears as Shadow’s tongue laves over Sonic’s pussy, licking up all of the salty slick that there is to offer. As he pauses over the clit to suck it into his mouth, he hums in appreciation, sending vibrations rolling over Sonic’s arousal.  

“Ngh- Ahhh! Yeaaa, you’re good- mmh! A-At that.”  

He alternates between harsh sucks and sloppy kisses, ears twitching at every moan he’s rewarded. In a bid to get a direct taste of Sonic, he moves down to lick into his core, tongue dipping in experimentally before plunging all the way in.   

Sonic’s legs kick from their hold in Shadow’s hands, his back arching up to try and press deeper, so much deeper.  

“ Chaos! Y-Yesss, f-fuck I need more.” he whines as Shadow’s long tongue presses inside, lapping at his slick and rubbing so infuriatingly slow against his walls.  

His toes curl inside his socks and if not for the strong hold on his thighs, he would be squeezing the hybrids head tight between them and flipping them over to ride his tongue. But instead, he writhes, bringing a hand up to clutch at two-toned quills and hold Shadow steady as he grinds his hips up and down.   

Suddenly, one of his legs is dropped and before Sonic can glance down to see why, Shadow’s thumb is rubbing quick circles over his clit once more.  

Sonic’s eyes look down to voice his praises, but he pauses at the sight below him, fighting not to cum right there. Because not only is the Ultimate Lifeform laid down propped on his elbows between his legs with his tongue fucking in and out of his pussy, but the Ultimate Lifeform is also currently grinding his hips down onto the bed beneath him.  

A needy moan escapes Sonic as he watches, watches the way Shadow humps down slowly but hard , the muscles in his lower back clenching with every thrust.  

“Heh- Nghh! W-Who's the dirty one now, huh?” Sonic smirks, the hand still wrapped in Shadow’s quills giving a small tug to get his attention.   

Two red, but dazed eyes glance up at him, never straying even as he continues to press his tongue in deep and grind his hips.  

“You’re no better than me,” Sonic accuses with a teasing tone, “It ah- feels good, right?”  

Shadow gives no response, yet he increases the speed of his thumb, rubbing over the puffy and sensitive clit with intention.  

“I-I hope mmm you’re thinking about me. A-About hhhhng! About finally being inside me.” Sonic’s voice almost sounds pleading.  

Shadow hums his response, affirming the hero’s words as correct, keeping his eyes on Sonic’s as he continues to grind down onto the bed.  

This becomes Sonic’s undoing, his thighs tensing so hard he’s scared he’ll get a cramp, as he barrels towards that peak. Shadow groans at the feel of Sonic getting so tight around his tongue as he fucks him through it, lapping at the creamy slick that tries to escape.  

Distantly, Sonic can hear the needy and almost pained noises that leave his mouth as he tries to process how good he feels. He knows he’s being noisy, but how could he not when Shadow the Hedgehog is currently licking away the mess from his folds.  

He pants loudly into the room, speechless, as Shadow kisses up from his navel, over his chest and all the way up to his muzzle. Something hard and wet rubs against his stomach, but before he can look down to see, Shadow’s mouth is capturing his in a slow kiss.  

He moans as the salty taste of himself overtakes him, allowing Shadow to lick into his mouth. The slow drag of Shadow’s hips draws his attention, the feel of his cock spreading slick over the fur of his belly sends small jolts of arousal back through Sonic, his own hips circling up to increase the friction.  

Shadow groans loudly into his mouth, humping mindlessly against the hero as he chases that feeling of bliss. Sonic reaches a hand down in hopes to help, well-practised in how to get Shadow shaking through his release, but a strong hand wraps around his wrist to stop him.  

“No... Not yet. You’re not ready for me yet.” he pants.  

“Huh? I’m so ready. I’ve been ready for months.” Sonic pouts.  

“No, my- ah- my knot. I need to... prep you.”  

Oh. Oh yeah.  

Sonic glanced down between them, taking note first of Shadow’s cock lying over his navel, leaking slick onto his fur, but also the large gland that had started to show, not yet at its full size.  

“ Gaia, that’s hot.” Sonic sighed, flexing the muscles in his stomach to watch the way Shadow’s shaft bounced over it, “Hurry.”  

Shadow slots his mouth back over the others, distracting him momentarily with a slow and wet kiss, before two fingers are circling around Sonic’s sensitive hole. He presses them in easily, already accustomed in the best ways to finger the blue hedgehog.  

He starts slow, stroking up over that ribbed surface that makes Sonic’s core throb with need, feeling himself get wetter in preparation for something bigger.  He’s vocal about his pleasure as he moans into Shadow’s mouth, rolling his hips down in hopes of pressing in deeper.   

Once a third finger is added, Shadow picks up the speed, fingering the hero with ease thanks to the excess lubrication.  

“That’s it, Sonic. I want you to take it all today. To take all of me.” Shadow coos against his lips, fingers never stopping their assault as they stretch him open.  

“ Yes! Yes... I want it- I've been waiting.” He hiccups as the other’s fingers pull out to thrust shallowly, before he’s being stretched even further as a fourth pushes in.  

“You’re taking my fingers so nicely.” Shadow praises, pulling back from Sonic’s mouth to kneel, watching as his fingers sink deep into the greedy hole.  

Each push produces a vulgar sound from Sonic’s mouth as he moans, hips bucking up mindlessly to meet each thrust. Shadow’s fingers rub endlessly over that spongey spot that has heat curling in Sonic’s gut, his toes curling against the bed as he gets closer and closer.  

Shadow’s gaze is intense as he watches Sonic’s bare hand move down to tease at his folds for a moment, before he’s rubbing swift circles over his own clit, mouth dropping open to moan loudly into the room.  

It’s as Shadow presses his fingers in deep, the tips of his fingers curved up to press over Sonic’s sweet spot that he feels the hero grow tight, so tight that it makes him dizzy wondering just how good it will feel later on his cock.  

“I-I’m gonna... Ahhn! It’s coming- out mmhh!” Sonic cries, fingers never stopping their relentless stroking over his clit as he suddenly grows tense.  

Shadow manages to press his four fingers in maybe two more times, before Sonic is tilting his head back into the pillows, the lids of his eyes drooped, as slick gushes out, making a mess of Shadow’s arm, chest and the sheets below.  

The hybrid never lets up the speed of his fingers, groaning at the feel of Sonic’s pussy fluttering around him as each wave washes over him, more slick wetting the sheets even as Sonic’s own fingers on his clit falter to a stop.  

“That’s a good boy. Just like that, nice and loose.” Shadow leans back in to press kisses to Sonic’s muzzle, feeling a smirk curl on his lips at the dazed expression colouring the hero’s face.  

Despite Sonic’s evident overstimulation, noted from the way his thigh’s twitch at the side of Shadow’s hips, Shadow continued to thrust his fingers in and out, relishing in the almost obscene sounds filling the room. Sonic added to them with his desperate sounding whines, almost dragging a pained groan from the hybrid as his shoulders were clawed.  

“Shhh... You’re almost there. Just one more and then I’ll give you what you need.”  

Sonic shakes his head, “Noooo. I can’t- Ahn! I-”  

Just as Shadow is about to argue back, he feels the hero clench around his fingers once more and then he’s shaking through another orgasm, mouth ajar in a silent scream. Shadow uses his free hand to stroke gently against Sonic’s sides, trying to sooth the tremors that vibrate through his body as he collects himself.  

With his other hand, he pulls his fingers out of Sonic’s before moving it down to spread the wetness over his shaft, groaning at the feel of finally having some real friction against his cock. He strokes over himself slowly while taking in the view below him; Sonic, with his legs still spread wide but now limp, eyes drooped and lids heavy as he pants loudly, his core twitching and waiting for something to fill it.  

Shadow leans back over to press gentle kisses to Sonic’s muzzle, running his tongue over the fur close to his quills in a bid to clean the hero up from his dazed and sleepy mood.  

“Dude... don’t lick me.” Sonic pouts yet tilts his head for better access.  

Shadow ignores the annoying nickname and continues his path down, nibbling over blue fur for a moment, before pulling back and finding Sonic’s eyes.  

“Are you OK?”  

Sonic grins up at him, “Shads, I am so fine you wouldn’t even believe.” His arms drape around black shoulders, “So for the love of Gaia, hurry up.”  

“Bossy.” Shadow tsks but moves to work anyway, “Don’t think I’ll go easy on you.”  

“I wouldn’t want you to.” Sonic huffs out a laugh, settling himself back among the pillows comfortably.  

Shadow moves back to kneel, bringing the tip to rub against Sonic’s folds, teasing him as he slides through the mess there. For a second, he presses the tip against the hole to test the resistance, before sliding back up to bump against the sensitive clit. Sonic watches on with interest, lips biting down into his bottom lip and Shadow dips his cock back down again.  

As Shadow begins to push the head into the wet hole, he feels Sonic clench , almost pushing him straight back out again. Shadow grinds his teeth in an effort to push in slowly , watching Sonic’s face intently for any sign of discomfort.  

“Relax. We won’t be getting anywhere if you’re this tight.”   

Shadow’s voice sounds almost shaky, this bringing a smug smile to Sonic’s lips as he forces himself to relax more. Once the head is inside, Sonic makes the mistake of relaxing too much, because when the next inch is slotting inside, he’s begging himself not to cry out because Chaos, he’s big.  

A pained, gasping breath finally leaves him once the next inch is pushing in, because how can he possibly have more to take.  

“Please tell me it’s all in.” He struggles to get his words out, eyes squeezed shut as he focuses on not being tense.  

Shadow pauses for a moment, one of his hands rubbing soothing circles into Sonic’s thigh.  

“...No.”  

At this, the hero’s eyes flash open, sitting up on his elbow to look down at where they’re joined. And the hybrid was right; there were at least four more inches to go and that was before the knot.  

“I-It’s not gonna fit. Seriously it won't-”  

“It’s going to fit.”  

“You can’t be serious?” Sonic cries, gasping suddenly as Shadow moves his hips forward again, slotting another inch in, “ Hnng! Too muchtoomuch-”  

The overstimulation builds deep in Sonic’s core, almost verging on painful as his clit aches from his previous playing. Something close to a groan claws its way up his throat as he struggles to stay relaxed, Shadow pushing further in.  

He’s distracted out of his problems entirely however when a bare hand cups his face, a long tongue licking into his mouth for a moment before lips are moving up to whisper in his ear, “It will fit, Sonic.”  

The unspoken promise of ‘ I’ll make it fit’ doesn’t go unheard and that’s enough to send a pulse of arousal down his spine, pooling low in his tummy.   

“Ohh fuck!” he moans loudly, “I need- I need Ah! Shadow-”  

Shadow’s mouth kisses softly at the tip of his ear, distracting him while both of his hands grab blue thighs, stretching them wide at Sonic’s sides before pressing them back into the mattress, the angle leaving the hero completely at the hybrid's mercy.  

“Shhh, I know what you need.”  

He thrusts shallowly, letting Sonic get used to the feel of his cock, how each bump and ridge rubs in all the right places.  

And then without any more preamble, he slides the rest of the way inside, holding his hips flat against quivering blue ones. A punched-out guttural groan escapes Sonic as he gets the full feel of Shadow, hands scrambling at his sides to fist in the sheets as Shadow begins his rough pace.  

The first thrust has Sonic’s toes curling as he tries to fight off the overstimulation, almost feeling like a visitor in his own body as he flutters around the intrusion, crying out in a mix of both overwhelm and encouragement.  

Shadow releases his own low groans at the feel of Sonic constantly clenching around him, his grip bruising from where it holds Sonic still, legs trapped back against the bed. His eyes slide down to watch as his cock sinks in, noting the bulge under Sonic’s navel that matches every thrust.  

“That’s it, Sonic.” He coos, almost losing himself in the sound of his hips slapping against the other’s, “Good boy- nngh! You- You take me so well.”  

Below him, the hero’s eyes flutter uselessly, unable to focus on anything but ShadowShadowShadow. Drool shines on the fur of his muzzle and garbled words slip past his lips.  

“I know, I know.” Shadow hums, removing one of his hands from Sonic’s thigh to press two fingers against peach lips. They open for him immediately, letting him press inside and stroke along the back of his tongue. In seconds, Sonic is sucking on the two long fingers, nibbling as they fuck his mouth softly.  

“I forgot how greedy your mouth is, I guess it has been a while,” Shadow notes absentmindedly, pressing down on the back of Sonic’s tongue to be rewarded with a tiny gag, before mumbling, “Messy.”  

Shadow’s thrusts are not hurried, but hard , the drag of each and every stroke pulling an involuntary cry from Sonic’s mouth as his sweet spot is assaulted. The constant burning that swirls deep in his core is so dangerously close to running out of control and overtaking him entirely.   

More garbled words leave Sonic’s full mouth, the hybrid removing his fingers to push back on his thighs again, exposing all of him for Shadow’s viewing. If Sonic as any shame about the position he’s in, he doesn’t show it, his tail whipping back and forth on the bed in pure excitement, likely a mimic of his own.  

“F-faster, please Shads please-”   

Shadow scoffs, hips suddenly picking up an almost inhuman speed as he fucks into the other, smirking down at the mess below him, before returning to his languid pace.  

“Is that fast enough for you?”  

“Yessss. Yes Shadow, again.” his voice verges on desperate as he gets closer to his peak, “ Moremoremore-”  

“Chaos , Sonic you should hear yourself,” the hybrid growls as he picks up the pace again, “You have no idea mmhm- how badly I just want to h-hold you down and- and knot you.”  

The mention of Shadow’s knot has the hero perking up, his eyes glancing down to where they’re connected and seeing the large, sensitive knot just desperate to be inside a warm hole.  

Sonic has to fight back the shiver that threatens to overwhelm him at the thought; clenching around the knot as he cums, feeling Shadow deep, deeper than imaginable as they come down from their afterglow.  

Shadow must be able to read the thoughts flashing through his mind, or his face gives it away, because his lip curls into a self-satisfied grin.  

“Oh, you’d like that , wouldn’t you?” he coos, rolling his hips in a way that knocked the edge of his knot against Sonic’s folds, teasing, “You want me to push it in? Do you think you can handle it?”  

Sonic nods his head sluggishly against the pillows, opening his mouth to state his argument, to list all the reasons why Shadow should knot him right now , but instead only stuttered moans find their way out.  

“You’ll take it like such a good boy, too. Isn’t that right, baby?”  

The words send red flooding his cheeks, ducking away to hide his face in the pillows, yet he nods anyway.  

“Don’t be shy.” Shadow leans down, hands still clasped around blue thighs and holding them impossibly wide and stretched, knees against the bed, before licking back into his mouth.  

“I-I can take it. I’ll be good... Mmmph, it feels-!”  

Shadow’s hips begin a slow and deep grind against his pussy, threatening to push in with his knot at any moment. With every thrust, the knot stretches him open just a little bit further and Sonic has to focus on keeping his eyes uncrossed at the sensation. The movement has the tip of his cock kissing the edge of his cervix, and each grind has the hero seeing stars, his toes curling in the air by Shadow’s head.  

A dirty and desperate moan rings out as another thrust rubs Shadow perfectly against it, sending Sonic’s eyes rolling into the back of his head and blurring his vision to complete black. Distantly, he can feel the way his core clenches tightly around Shadow’s cock, the dull throb finally releasing in a quick gush of slick, followed by another as Shadow continues to pound into him.   

The sudden release of pressure has him feeling like he’s floating, ears ringing as blood rushes to his head and his fingers tingle. His ears fill with cotton and the only thing he’s able to process is the deep throb that run through his core. The entire feeling overwhelms him, Sonic submitting to it as he rides out his orgasm, simply waiting for it to wash over him.  

Meanwhile, Shadow watches in fascination as the hero under him suddenly tenses, squirting slick all over his hips and stomach, eyes completely rolled back, before he shivers and goes limp.   

Every piece of tension seems to melt out of the other, his head lolling on the pillow with a dazed expression and mouth ajar. Sonic going completely limp is the last puzzle piece needed for Shadow’s knot, a few hard thrusts and he feels it pop inside, releasing his own guttural moan at the feeling of Sonic’s heat around him.  

The motion sees another weak gush of slick, Sonic shaking around him as the knot locks them in place and Shadow can’t hold on any longer. He grunts as he begins to spill into the hero, hips stuttering as his knot is squeezed so nicely inside Sonic’s pussy.  

“F-fucck, Sonic! Ahhg, ahh, ah! Good-good boy, that’s it .” He pants breathlessly into Sonic’s chest fur, grinding his hips with abandon, thinking about nothing but getting every drop inside Sonic’s warm, tight heat.  

Once the oversensitivity kicks in, he slows his thrusts to a stop, familiarising himself with the rapid pace of Sonic’s heartbeat under his ear as he waits for the other to recover. He moves up and his breath ghosts across Sonic’s twitching ears, nuzzling the soft fur there before leaving hot kisses behind.  

“You were so good for me, taking my knot so well. You’re always such a good boy, aren’t you?” he praises, not even sure if Sonic can really hear him, but not wanting to risk the other falling too suddenly from his high.  

Shadow moves his bare hands to the small waist and smooths over the mussed fur, urging the other back into wakefulness.   

He waits for close to seven minutes, whispering praises into his ear and still wrapped in the heat of Sonic as he tries to stay calm, trying not to think about how tight everything feels right now. Slowly, he feels Sonic begin to rouse, his fingers twitching to life and a stuttered breath catching in his throat.  

Shadow lifts his head to look into glassy, green eyes. Sonic’s face looks relaxed, expression verging on dopey as he wraps his arms around black shoulders.  

“How long was I out?”  

“Not too long.”  

“Mmm. Chaos that felt... so good.”  

Shadow hummed his agreement, moving his mouth to capture Sonic’s in a lazy kiss, trying desperately to take his mind off how the need to cum was slowly creeping back down to his aching shaft.  

He moaned softly as they kissed, absentmindedly grinding his hips, only becoming aware once Sonic gasped into his mouth, blue legs wrapping tight around his waist to hold him still.  

“Shads, quit moving. I’m super sensitive right now.” He pouted.  

“C-Can’t... I need- mm!”  

Shadow’s hips stilled and something close to a mewl slipped past his lips as he spilled into Sonic again.  

“Did... Did you just cum again?” Sonic pondered.  

“Yes,” He sighed almost dreamily, dropping his head back down onto the soft chest “It’s going to happen a few times while we’re locked together.”  

“How long are we stuck like this?”  

“At least an hour. Possibly two.”  

Sonic let out a low whistle, content then to let the sleepiness overtake him and wait out the knot surrounded by the other’s warmth, but Shadow’s low voice caught his attention.  

“Did you mean what you said?”  

“Huh?”  

Sonic glanced down, finding a wrinkled frown between the hybrid’s brows.  

“What you said earlier.” He mumbled into peach fur.  

“You’ll have to specify, I say a lot of things all the time, Shads.”  

The other is silent for a moment, but Sonic watches him quietly anyway, enjoying the view as the tips of Shadow’s ears tint pink. Sonic also notes the way the hybrid’s hips start to grind in teeny circles again, almost undetectable if not for the way the bulge in Sonic’s stomach moves with it.  

“You said no arrangements. That’s really what you want?”  

Sonic sleepily pondered for a moment while he was given the chance, thinking over the previous arrangement they’d had. Sure, Sonic really ( really ) loved having an excuse to spend time with Shadow, and he really loved getting the chance to help with a problem that no one else could fix (other than G.U.N).  

But also, when he thought about things, he didn’t just want to help. He didn’t want to sit around, constantly waiting for that message to come through so that he could race over here. He didn’t want to be at home, feeling needy and desperate while he humped a pillow and thought about a certain hybrid, not after he’d had the real thing.  

The feel of Shadow’s fangs grazing his fur bring him back to the present, the feel of drool now wetting his chest as the other continues to grind his knot inside, Shadow’s hands at his waist twitching with the urge to pull the hero closer.  

“No arrangements. It’s like you said, neither of us could be normal about it anyway.” Sonic huffed a laugh, bringing a hand up to scratch through Shadow’s quills after taking note of his flattened ears, “I... I know it’s kinda scary and probably a bit weird for us, yeah.”  

Sonic seems to hesitate for a moment before his next words, but a chuckle, almost as if in disbelief rumbles between them, “But I like you, a lot more than I wanted to at the start of all this, so I still want to try. I mean, only if you do too you can say no obvi-”  

Shadow moves his hips in a more obvious grind this time, definitely intentional as he twitches inside Sonic’s warmth, once again pushing the hero onto the precipice of overstimulation with a whine.  

Shadow seems pretty content to just grind mindlessly for a few minutes, before he replies with a muffled, “Of course I do.” And as if to prove his point, his hips still again as an almost miserable sounding moan slips past his lip as he comes one more time.  

The feeling of warmth that spreads through him has Sonic’s legs moving up with squeeze at Shadow’s hips, unintentionally clenching at just how full he feels.  

“ Chaaooss... T-That feels- you need to quit before I lose my mind, seriously.” Sonic swallows another whine as Shadow continues the tiny movements of his hips.  

“Sorry- mmh. S-Sorry.” Despite his words, it almost sounds like a growl as he bites down on Sonic’s chest again.  

“S’ fine, but I’m tired. I won’t be able to stay awake for an hour.” He settles his head back into the pillows, making himself comfortable with a yawn, “You do what you need to do, don’t worry. Just try not to wake me.” he mumbles as his eyes stop fighting the droopiness, fluttering closed.  

Faintly, as he falls asleep, he feels Shadow’s hips still rocking into him slowly, lulled by the sound of the other’s almost pained moans as he fights with his own overstimulation. His dreams are bleary yet vivid, as they replay the events of the day through his mind, feeling every thrust and clench as if it was real.  

He’s awoken sometime later by the feel of Shadow finally pulling out, both grunting at the action as Sonic processes just how empty he is now. A moment later and the unpleasant feel of two hours' worth of release is escaping him.  He must make a sound because the next thing he knows, Shadow is nuzzling against him and hushing him with a wet tongue running over his fur.   

A purr breaks out of his chest, content to lay there as Shadow licks an almost practiced path along his fur. He wonders just how much grooming the other had done while he was out. He lets the hybrid lick him clean until his nose is nudging his own, mouth hovering close.  

“How are you feeling?” Come’s Shadow’s low rumble, his eyes flicking across his face for any signs of discomfort.  

“Other than the mess, I actually feel great, better than that, actually” He sighs, silently inching his mouth closer, “You?”  

“There are no words.” Shadow whispers before pressing their lips together.  

Sonic’s stomach does something funny at that, the feeling buzzing through him as he kisses back, loving the feel of Shadow’s hands wrapped securely around his waist, keeping him grounded as his mind threatens to float away.  

They stay like that for a while, happily kissing away, until Shadow eventually moves back. His eyes wander down to take in the mess below, and then he’s up and padding away, returning in a flash with a wet cloth to wipe away the worst of it escaping Sonic.  

Effortlessly, he throws the cloth into the laundry basket and then he’s moving to slot himself behind Sonic, the hero happy to give his hips some rest from their previous position.   

Shadow take’s care to move quills out of his way so he can drape himself over the other’s back, nuzzling into the space between Sonic’s shoulder and neck.  

“So,” The low drawl of the hybrid disturbs their peace, “Moving forward, we are now... what, exactly?”  

“Hmm... Exclusive? Dating, maybe? B-Boyfriends?” Sonic hates the way his smile wobbles slightly with his poorly concealed excitement.  

Shadow huffs a breath across his fur, sending goosebumps in its wake, “I think we’re past dating, Faker.” He nips lightly at Sonic’s neck before adding, “Boyfriend will do fine.”  

Sonic doesn’t care that he’s probably vibrating in happiness, sinking deeper into the other’s hold.  

“OK, sounds totally great to me. No biggie, right?” The mischievous lilt to his voice doesn’t go unnoticed and Shadow can practically hear the grin he’s sporting.  

“Right.” He sighs, tightening his grip on Sonic’s waist.  

“Are we, like, telling anyone or...? I think they’ll be kinda shocked.” Sonic mumbles, almost to himself.  

Shadow mulls it over for a while, not quite sure what the best approach would be.  

“I don’t care what anyone else thinks.” Shadow deadpans, “But, if you’re worried about your brother, I’m happy to take things slow. Publicly, that is.” He adds with a teasing pinch to a blue hip.  

Sonic feels his muzzle colour at the implication before letting out a breath of relief, just glad he wouldn’t have to talk with Tails about his dating life just yet.   

“Sounds good to me. Honestly, I think we’ll be fine as long as Rouge doesn’t find out first.” He sighs, closing his eyes and embracing the warmth of the body behind him, “Now please can we sleep.”   

A hum of agreement sounds out behind him and then they’re both submitting to a peaceful and exhausted sleep.  

Shadow wakes first to the sound of his alarm, sleepily taking note of the body curled up in front of him, their legs entwined, and a peach arm thrown over his waist. Blearily, he reaches an arm out to grab at his phone where it rests on the bedside table, turning off the annoying ringer and blinking at the screen.  

An unopened message grabs his attention, opening and reading through it once. Then twice. Then a third time, before his brain finally catches up.  

Rouge: 
How’s a girl supposed to get any sleep around here?? Rude. 
Tell Blue I said hi btw ≖‿≖ 

A long breath expelled itself from Shadow’s nose as he blinked, placing the phone back down on the table and laying down on the bed.  

Taking things slow publicly. Ha.  

Then, he felt something rumbling through him before he could stop it.  

That morning, Sonic woke to the sound of Shadow’s uninterrupted laughter.