Archive of Our Own ^beta

Sanemi brought the flat disk to his lips and took another shot as Rengoku babbled on Sanemi's left about his sweet little brother Senjuro. Giyu was listening attentively as he could, his face blushed with alcohol as he was on the left of Rengoku. Thankfully he was as far away from Sanemi as possible. Shinobu was also with them, sitting across from Rengoku. She listened along, nodding politely and taking one shot after another without trouble. It was an odd group to drink with, Sanemi would admit.

Rengoku was an admirable Hashira, even if he was a little socially inept while somehow being extroverted. So being around him didn't bother Sanemi too much. Shinobu was a smart young woman, but it felt a little weird to drink with Kanae’s little sister like how he would’ve done with her. And then there was the outlier… Giyu. Sanemi rejected him joining the trio but Shinobu and Rengoku had happily let him come along which outweighed the votes against him.

Sanemi huffed out as he poured himself another drink. He wanted to unwind with company he liked but he assumed if Giyu did anything annoying he wouldn’t be too bothered by it if he got drunk fast enough.

“How about you Shinazugawa?” Shinobu's calm and even voice danced its way over and he turned his head to see everyone looking at him expectantly.

“Huh?” Sanemi slurred before he downed off his next shot.

“You do have a younger brother don’t you!” Rengoku was loud and it made both Sanemi and Giyu squint in over stimulation.

“Huh?” Sanemi repeated, just a little bit more annoyed. He did not want to talk about this when he was drunk.

“Mmmm, that’s right. I’ve treated him many times. When I saw his last name I was pretty surprised to see that you two shared the same name.”

“Who are we talking about?”

“Young Genya of course!”

“…”

“He has a unique mohawk hairstyle.”

“Ah.”

“Why are we even talking about him!?” Sanemi clicked his tongue and swished his wrist back and forth in front of him, annoyed, as his comrades and Giyu tried to decipher who his little brother was.

“We just wanted you to share about the loving past you and your brother had!” Rengoku clapped him on the shoulder, making Sanemi bump the table.

‘Loving… past?’ Sanemi felt his cheeks and chest get warm. This was trouble for him. Because unlike the stories Sanemi heard Rengoku share, he and Genya were always off working instead of playing. To them there was no better bonding time than doing a job from sunrise to sunset. Until one day Genya had pointed to a tent in Sanemi’s pants one morning when Sanemi had been twelve. And with a house that small, Sanemi and Genya both knew how to take care of that from their parents' nightly routine.

What they didn’t know was that Sanemi could have just done it himself. But growing up poor and uneducated led them to the only conclusion they did every night.

It was something Sanemi tried not to look back on. Especially with how everything was between him and Genya. He didn’t think he gave off a loving feeling towards that little kid in front of others. So there was no possible way Sanemi gave off those vibes. Unless it was obvious. Were they even implying what he was thinking? Did he say something to make them suspicious? Maybe Sanemi let out a weird anecdote during Rengoku’s blathering and he didn’t catch it. But Genya wasn’t even on his mind while he was sober at the beginning of their wind down.

Sanemi decided to play it safe and defensive.

“Mn, we never did a thing.” Sanemi mumbled as he shrugged into himself. He grabbed the shared sake bottle and poured himself another shot.

“That can’t be true, he always has something good to say about you when I bring you up.” Shinobu gave him a kind and honest smile. Feeling embarrassed, Sanemi took a sip and side-eyed the group.

“It’s true.” He defended curtly as he finished off his drink.

“Not even a hug before bed!”

“Did you ever gift him something nice?”

“No.” He poured, then drank.

“How about sharing lunch together!”

“A day trip? Just the two of you?”

“No.” He poured, then drank.

“Well you must have said ‘I love you’ at least once?”

“No.” He poured, then drank.

“Can you even call him a sibling if you didn’t say I love you? I don’t understand how you two even have a bond if this is how you acted.”

Sanemi slowly craned his neck to look at the bug who said that to him.

As he looked down at the table his eyes passed his respectable peers.

Rengoku had a big but awkward smile on his face, his eyes oddly tense and flickering between Sanemi and Giyu. While Shinobu had her hand covering her mouth. She slowly looked from Sanemi, to Giyu, then back to Sanemi, almost like she was anticipating something to happen.

His eyes slowly made their way to the least respectable person, who sat sipping his drink casually.

“What the fuck did you say?” Sanemi propped himself on one knee and leaned on the table. His right hand fist slammed against the top as he tried to hold himself back.

“If you loved your brother, there is no way you could’ve acted so cruel.” Giyu said monotonously as he stared down at Sanemi.

“I never acted cruel! I showed him a lot of love!” Sanemi finally admitted without caring. How could someone as emotionless as Giyu tell him what did and didn’t count as affection or love?

“Really?” Oh, Giyu was challenging him now.

“Yeah, really!” Sanemi mocked back as he stood up. He could feel Rengoku, calmly place a hand on his knee trying to aid him to calm down but Sanemi had had it with Giyu, once again.

“How so? What did you really do to prove you loved him?” Giyu responded looking blankly at Sanemi.

“I did everything! Every single fucking thing you could think of! I fed him, I bathed him, I protected him! ” Sanemi was roaring at Giyu and he got so worked up that Rengoku had stood up to push Sanemi away from getting any closer to Giyu.

“That’s basic necessities. Anyone with a heart would do that.” Giyu rebutted. Sanemi was so drunk, and the last few drinks had been so fast it made him absolutely delirious; he didn't even care about what he was admitting too. He just needed Giyu to be wrong.

“Well! I even went as far as fucking him! How’s that for basic necessities!”

The room went silent.

Rengoku was less smiling and more, agape at what Sanemi had just admitted. He slowly turned and looked down to Shinobu, who now had both of her hands on the table, her jaw dropped with a wide stare at Sanemi. And stupid Giyu had gone completely rigid, his eyes widened at the confession.

“W-what….” Shinobu stuttered out completely at a loss. “You penetrated your little brother..?” She looked mildly concerned and at that, and the clarity finally hit Sanemi. (But frankly the clarity didn’t make him realize what he admitted too. Just that he was now in an awkward situation.)

“What?! No! I just, if he needed something I did it!” Sanemi defended himself to her as Rengoku sat them both back down, like it was his way of diffusing the tension.

“Like..?” Giyu spoke again and Shinobu immediately turned her head and gave him a look of ‘please shut up.’ Or at least Sanemi interpreted it that way.

“Like uh, like fuck! I don’t know! If he wanted to bounce on my thigh! Or I’d kiss him until he fell asleep! It was sibling stuff!” Sanemi shrugged and slammed a fist on the floor. His face was totally red from embarrassment rather than alcohol.

“Well… that’s quite… something to admit.” Shinobu was looking at Rengoku with an almost knowing expression. He looked at her too before he smiled big and firmly went to hold Sanemi’s shoulder.

After that exchange, it was like something shifted. The expected reaction to something so taboo became less hostile and everyone seemed to relax slightly.

“Shinazugawa! I understand you! As an older sibling myself, I have experienced helping Senjuro through his own journey in puberty!” Rengoku admitted proudly. He gleamed down at Sanemi and it made Sanemi feel a little alleviated from the situation at hand.

“Well, Kanae was handsy with me as well.” Shinobu politely cleared her throat. “And when Kanao needs it… I at least have the experience from my onee-san to help.” Shinobu offered her own piece of history as she spoke into her knuckles that were gently perched against her lips.

“My sister used to rub my chest to help me sleep sometimes.” Giyu added quickly and awkwardly.

The tension in the room seemed to die down just a bit and everyone sat silently, contemplating the current topic of discussion.

“Well, I suppose with how Genya is, I wouldn’t put it past you to have taken responsibility.” Shinobu broke the silence and offered a friendly look, like they all just hadn’t admitted to having inappropriate relations with their siblings.

Shinobu’s phrasing was a little conspicuous to Sanemi. He didn’t like how she was trying to paint Genya and his needs. It felt almost insulting to the both of them, but especially to his little brother.

“With how Genya is?” Sanemi leaned and crossed his arms. He didn’t like where this was going.

“He comes in every few weeks for a sexual health screening. Though, I think I shouldn’t have admitted this to you.” Shinobu cringed at herself for her drunken mistake. She looked away from Sanemi and went silent.

“What.” Sanemi froze at this information. No, no, no, no, no. This cannot be real. He felt thousands of images and ideas flooding his brain. His Genya, young and freshly abandoned, being caught by some wild men, or even worse demons. Being used without care when all he knew was Sanemi’s soft but brutish petting. Or even worse, Genya going out of his way to beg for comfort, putting himself in any position just to get some. Sanemi didn’t want to believe it.

Even though yes, as children Genya was extremely fussy about this kind of stuff. Always begging Sanemi to kiss him when no one was looking. Or asking if during the night Sanemi would let him into his futon. Or licking in between Genya’s legs to help him sleep. Even rubbing his growing pre-teen cock onto Genya’s tiny pink folds to satisfy the both of them.

But asking a stranger? Asking enough strangers to warranty a health screening! Sanemi had truly failed. Instead of his little brother settling down with a nice man who would give him a lot of kids, Genya seemed to be fucking anything with a penis by Shinobu’s knowledge.

“God no…” Sanemi held his face in his hands. He supposed this is what he gets for pushing Genya away and letting him choose what to do with his own life. It’s Sanemi’s fault he didn’t continue to take full responsibility for his little brother. And most importantly he felt guilty for not being there to guide Genya when his sweet virginity was taken by some creepy older guy and not its rightful claimer.

Sanemi was so shaken he didn’t even mind that for the fourth time this night Rengoku had touched him so friendly. He felt his back being rubbed and patted as he felt the turmoil in him grow.

“Don’t worry Shinazugawa. Tanjiro is likely a great partner.” Giyu spoke softly in reassurance. But Giyu didn’t catch the way Rengoku and Shinobu both closed their eyes and said a silent prayer for the young Tanjiro.

“Kamado… is fucking my little brother?” Sanemi lifted his head and his eyes were bulging out of its sockets as this truth was revealed.

“They seem to be in a relationship, or at least courting each other.” Giyu replied with a nod.

Yeah, that was not happening on Sanemi’s watch.

Sanemi stood up with so much force and speed the table shook and the cups and bottles clattered. Each step he took towards the sliding door, the table rattled more and more.

“Shinazugawa! Where are you headed!” Rengoku tried to grab onto the back of his haori but Sanemi swatted his hand away.

“I have to find where that little Kamado bastard is.” Sanemi’s hands balled up and his veins were popping under his skin, snaking their way up to his forearms.
He reached up and opened the sliding door. It smacked with so much force the sounding clap echoed after as he walked out of the room.

—

Sanemi stalked throughout the communal Demon slayer corps grounds. An area that was made for slayers who needed a place to stay but weren’t injured enough for the butterfly estate.

‘These brats have to be here. They have to be.’

As Sanemi walked from building to building listening in deeply trying to hear either of their voices. He could feel his muscles get itchy and bothered.

He was so wound up from learning that Tanjrio must’ve been Genya’s first that his body got more tense each time he inspected a building and there wasn’t any sign of them.

Usually he would’ve wanted to lay them both to waste but the alcohol running through his body made him feel a little differently to Genya. Sanemi knew in his heart that he would beat Tanjiro to death but Genya too?

No. Genya finally deserved his big brother back. That’s what drunk Sanemi was feeling in his heart. At the thought of embracing Genya again, he felt his chest tighten and he clenched his jaw. Sanemi paused his walk, and felt the overwhelming desires he had for Genya finally creep up.

He brought a knuckle up to his mouth and bit down, trying a substitute to not to break his jaw. Fuck, Sanemi just wanted to smell the soft powdery scent of Genya’s skin. Or even taste his sweet wetness that would drip out from his pussy every time Sanemi kissed his clit.

Sanemi could really remember it all. The late nights where Genya would crawl to his futon then sit on Sanemi’s knee before grinding down. Thinking he was so quiet even though Sanemi heard every whimper. And when Genya couldn’t get off on his own, Sanemi would ‘wake up’ and ask Genya what was wrong. Then, his little brother would roll down his pants and reveal his unblemished pink little cunt. And Sanemi knew he was the only one that could help Genya.

Sanemi could taste his own blood on his tongue. And his molars almost scraped against each other as he pushed these memories down, not into the back of his mind but rather to his growing erection.

God, how many years had it been since he heard Genya quietly pant out “Nii-chan, I need it harder.” As he felt Genya’s tiny canines bite on his jawline.

Sanemi had been stumbling around in drunken thought before he stopped to gather himself on the side of one of the housing buildings. He removed his knuckles from his mouth and licked his lips clean as he tried to calm his breathing. The cold night and wind being the only grounding sensations to his body as he took in a silent focusing breath. Then that’s when he heard it.

A soft fabric being hurriedly moved, a small gasp and the distinct sound of Genya whispering out, “Nii-Chan…” behind the thin sliding door to his side.

The lights were off, except for a small little yellow glow from a lantern inside the building. Swiftly and silently Sanemi pressed his ear and quieted his breathing as he listened in.

Even though he was hot-headed, the alcohol helped him slow down. His usual aggression subsided because he was non-functioning due to the heavy amount of drinking.

‘It could just be Genya masturbating’. Sanemi thought. If it was, then going in guns blazing would’ve put another dent into their relationship. If it was his Genya, touching himself then Sanemi could enter like a prince. Saving Genya from his own useless self pleasure.

“Don’t worry, Nii-Chan is right here.” Sanemi’s selfish fantasy had broken to the sound of Tanjiro’s boyish and charming voice responding.

Sanemi could feel it. The last shred of self control in his body had been so taut that it snapped right in half at absolutely knowing that Tanjiro was going down and in on his little brother. Tanjiro even had the balls to refer to himself as Genya’s Nii-chan! A title that should’ve been solely reserved for Sanemi only.

He quickly lifted his hand and slid the door open. He didn’t want to expose Genya to the rest of the world, so instead of redoing his explosive exit, he let the door rattle and clack as it revealed his nightmare.

There was Genya, in a disheveled pastel colored sleeping yukata. He was on his back, his exposed legs pressed to exposed chest. The long pale limbs were held firmly by tan hands that groped greedily as the owners' hips were sliding languidly in between. At the sudden noise both of them turned their heads and hurriedly went to cover the evidence but Sanemi had seen.

As both parties came to the conclusion of exactly who caught them, the air seemed to die before both of them started to speak.

“Shinazugawa-san! I-I-I-!”

“Aniki? What the hell? Don’t look!” Genya had kicked Tanjiro’s shoulder as he scooted himself into a sitting position while Tanjiro tried to tie up the front of Genya’s yukata.

It didn’t really matter though, because within a second Sanemi had Tanjiro by the front of his neck and was squeezing with genuine intent to kill.

“Hck!” Tanjiro went to grab at Sanemi’s hand and clawed at it as Genya watched frozen in fear and muddled lust.

“So it’s true. Kamado, you think you can rape my little brother and I wouldn’t know a thing? You think you can take his virginity with that sleazy thing between your legs?” He spat out through his clenched jaw as he put more pressure onto Tanjiro’s neck.

“I’ll let you breathe for one second to say your last words, but this is what you get for taking what’s mine.” He said before barely unclasping his fist. Sanemi didn’t care about what Tanjiro might have thought by claiming Genya was ‘his’.

“H-he’s still… a virgin!” Tanjiro gasped out with certainty. It was a smart last phrase, because the rage in Sanemi faltered for one second before he processed what was just said.

Sanemi changed his grip, holding the boy tightly by the hair. Tanjiro gasped and inhaled because his life depended on it, the air abrasively elevating. Sanemi now focused his attention onto Genya who had his legs tightly shut as he trembled while watching the altercation.

“Show me.” Sanemi leaned over Genya with Tanjiro whimpering in pain behind him. “If it’s true, then maybe your little boyfriend might live tonight.” Sanemi had a malicious grin on his face, his voice tight and deep as he demanded Genya.

Genya looked wide eyed and deer-like at his brother. His shoulders were tight and his lips were pressed into a thin line as he tried to will himself to move his body. He tried to move his knees apart, they twitched and shook as he slowly opened them a few inches from each other.

Genya couldn’t believe this was happening, he didn’t even know what to do or why this was the outcome. He didn't know how he could possibly defend Sanemi the next day after claiming Genya was ‘his’ either. Hesitantly, in the quiet scrutiny he spoke.

“Not in front of Tanjiro… please, uh aniki…” Genya looked down at his knees, his face was completely red and it travelled to his shoulders and chest as he trembled. This was the most he could do for his dignity. He didn’t want Tanjiro to know the depth of this altercation. All Tanjiro had to know was that Sanemi was overprotective. And not the person who showed Genya how to suck cock the way that blew Tanjiro’s mind the first time Genya did it to him.

At that request, Sanemi clicked his tongue and got up, dragging Tanjiro by the hair still before he walked over to the open door. Sanemi brought Tanjiro up to face level and spoke.

“Don’t ever touch my little brother again.” And with that, he lifted Tanjiro into the air and tossed him as far out into the wooded area above the ground's safety wall as he could.

Sanemi slid the door back into place, a quiet tension becoming stuck in the room with the two brothers. He made his way over and sat in front of Genya’s legs and placed both his hands onto Genya’s knees.

“Wait! Ani-“

“Shut up! You were taking too long when I asked you the first time! I’ll just do it myself.” He pulled apart Genya’s knees and held them down firmly on the tatami mat.

Genya laid there, straining against his big brother's hold as his sex was exposed. It was red and puffy from Tanjiro’s long night of grinding and use, wet spots and small pools of Tanjiro’s cum was sliding down his outer labia or collected on the small hollow of Genya’s navel.

“Fuck… I can’t believe you really let him use you.” Sanemi growled as he moved one of his hands to pull apart Genya’s lips. His calloused fingers pressed against Genya’s soft plush pussy and pulled it to the side. The hole clenched and winked as it was revealed
It was still as small as Sanemi remembered, and its color wasn’t as red as the outside of Genya’s pussy.

Sanemi heard Genya give out a few restrained pants and wines as he dove his head down to take a better look. His warm breath teased at Genya’s entrance as he concentrated. He didn’t even know how to tell if Genya was still a virgin or not. He knew a vagina was a relatively stretchy thing, his own experience coming into play as knowledge. But deciphering if it was unused in general? Sanemi had no clue. All he could do was test Genya’s reaction to being penetrated.

Slowly Sanemi tried to slip his middle and pointer finger in. His thick and boney fingers prodded at the entrance as he tried to push in but Genya had clenched down hard, making the push difficult.

“Aniki! I swear, Tanjiro’s never been inside!” Genya pleaded as he closed his legs around Sanemi’s invading hand. The softness of the fat gave Sanemi’s cock a throb, thinking about how gentle Genya’s body still was even after all that training. And how nice it probably would’ve felt to fuck his thighs.

“Then, who has been in?” Sanemi asked as he pressed one thigh back down, it was the most he could do in his state. Opting to use one finger instead, as it seemed Genya’s hole wasn’t ready for two (a good sign) he slowly sank in until his last knuckle was pressed firmly on the bottom of Genya’s clit.

“No one, I promise… Aniki.” Genya whined and Sanemi looked up at him. His face was miserably cute, a pout and needy eyes looking off to the side. Sanemi just wanted to fuck him. He just wanted to rip that yukata off and forcibly slam his large cock into Genya’s hopefully sweet virgin hole until it couldn’t take anymore.

“Quit it with the ‘Aniki’ shit. I heard what you called Tanjiro,” Sanemi started to pump his finger in and out, a lewd wet sound being made almost instantly as he toyed around in there. Sanemi could feel himself relive his childhood days of fingering Genya open with one finger, only two knuckles deep as he squirmed in Sanemi’s lap.

“You’re fucking him but calling out to me. You’re probably thinking about my hands, my mouth and my cock aren’t you? The only thing you’ve ever wanted in this world was me, ain’t that right?” Sanemi accused Genya but he was equally guilty. Even when he lost his virginity himself, having sex and getting to think about his own orgasm wasn't as good as getting to taste Genya squirting into his mouth after hours of amateur licking and sucking. His little brother, then being able to finally fall asleep, left Sanemi to relieve himself by stroking his cock to Genya’s pink bitten up lips and boyish face.

“So say my name properly.” It was a demand followed by a second finger poking itself into Genya’s unbearably tight and pulsing hole. The fast tempo finger-fucking increasing as Sanemi panted out while watching it happen.

“Nii-Chan,” Genya whined out long and needily as his legs succumbed to submission, no longer fighting back to conceal what Sanemi was already familiar with.

At that, Sanemi could feel his cock slip out from his own yukata from finally reaching max hardness. The hot head poked out in full arousal at the sight of his little brother's whimpering and his drooling pussy. It leaked and made his fingers shiny with each thrust and Sanemi, with only the power of alcohol, held back to fully extend his torture.

“Yeah, you’re real Nii-chan is right here, Genya.” Sanemi readjusted himself, gently guiding Genya to lay back down as he leaned over. His arms now moved back and forth instead of just his hand as he rammed Genya with three thick and abrasive fingers.

Sanemi knew all the telltale signs of Genya’s orgasms. From watching with intense interest as kids to accustomizing himself with Genya’s body through their play. He knew that when Genya’s shoulders went still from holding his breath, chest puffed out and his stomach caving in shakily, that Genya had completed. He could also tell by the way Genya was fluttering on his fingers, but it wasn’t as interesting to watch and learn because that act itself wasn’t uniquely Genya.

At that, Sanemi concluded that Genya must have still been a virgin. As kids Sanemi held out on fucking Genya, as he was too small and Sanemi too uncontrollable once he reached his limit. If Genya could cum by three fingers then he was either so untouched or a total slut who longed for his big brother. Either worked for Sanemi because from this point on Genya’s hole was now reserved for him only.

When Genya finally relaxed, he tried to take a breath in but Sanemi swooped down and kissed him. It was an open mouth kiss, Sanemi’s bottom teeth pressed tightly on Genya’s bottom lip as his tongue went straight to licking at Genya’s naturally sharp fangs. Sanemi licked around, feeling the groves of Genya’s teeth, and he tasted the slightly sweet reminiscent of some type of dessert or maybe candy Genya had snacked on before laying himself down for a midnight fuck.

He then felt Genya run the tip of his tongue against Sanemi’s, which was his way of begging Sanemi to choke him with his big brother’s spit and tongue. If Sanemi had to name the neediest part of Genya, it would be his sensitive mouth. Whether it was Genya pleading to suck on his fingers, kissing until his lungs gave out or simply lolling the head of Sanemi uncut cock in his small mouth between kisses. Genya always needed his mouth used and weak by the end of their sessions.

Sanemi let gravity do its work, his spit sliding down into Genya’s mouth as he felt his little brother lap it up and glide their tongues against each other. He could feel Genya breathe through his nose as he sucked at Sanemi’s tongue before it left to lick at Genya’s teeth or be shoved in as far back as possible. They went at that for a while, Sanemi’s fingers starting up again once he felt Genya’s pussy calm down. They sucked at each other's tongues, lips bitten and pressed as they informally ate at each other rather than kiss. Sanemi could have done this all night. He probably would’ve if it weren’t for the meek way Genya pulled at the back of his head which made him pull away. Even if Sanemi was wanting and endlessly sadistic, he knew his purpose in life was to Genya’s whims and that only.

“N-nii-chan, you’re going too far. I already came, it’s enough.” Genya was barely audible as he begged breathlessly, his chin and lips covered in spit as he tried to catch his breath. With a hungry huff through his nose, Sanemi pulled his soaked fingers out of Genya’s nicely prepped hole. A string of his wetness only breaking when Sanemi went to reach for his own cock. At the grip Sanemi grunted, he was so engrossed in pleasing his little brother he didn’t even realize how tightly wound up he was. The warm slick grip of his hands was almost enough for him to cum.

“It’s what you deserve. Going under your Nii-chan’s nose to fuck stupid boys and then coming on his fingers? What kind of slut are you?” Sanemi sneered as he pulled his yukata open, revealing his thick and heavy cock. It loomed over Genya’s pussy, the wet head just an inch away from his tiny clit.

“The kind you made.” Genya turned his head to the side coyly. His neck exposed and bangs falling in his needy face as he looked at his big brother.

Sanemi’s face was tight and withholding shocked arousal. Even if Genya was pleading no, Sanemi could see through it. His body was accustomed to Sanemi’s touch. Even though his mind was forcing him not to like it, just by the way Genya kissed back and presented himself for his big brother was enough for Sanemi to know that his body craved to be worn out like it used to be.

In an angry heat, Sanemi pulled Genya against him by the back of his knees. He placed Genya’s lean legs over his shoulders as he held the base of his fat cock before he slapped it onto Genya’s receptive and leaking pussy a few teasing times.

“Do you remember this? Do you remember begging for it every night.” Sanemi smirked, trying to see if Genya would little himself down like he used whenever Sanemi would pull out his well growing teenage cock. He rested his leaking cock onto Genya’s stomach, the base rubbing against his clit and the tip drooled on the top of Genya’s belly button.

“It’s bigger…” Genya mumbled out dreamily as he stared down with an open mouth, not realizing he was letting his subconscious answer for him. That was too much for Sanemi. At that sight, he felt his balls tighten up and his stomach coil. A stunned orgasm shot through his body, his cock shot out three hot streams onto Genya’s belly and lower chest. But the orgasm wasn't relieving in the slightest. If anything, it made Sanemi’s lust overtake his body and without warning he pulled back and slid his cock over Genya’s small sensitive clit. From tip to base, Genya moaned surprised and his hips lifted instinctively, pressing their sex’s messily against each other.

“Ahh, Nii-chan, please stop!!” Genya cried out as he kept his hips raised. He slammed one of his fists down on the floor as he let out an exasperated tantrum. He clenched his jaw and groaned at the building feeling in his sex as his brother’s tip rubbed over and over on him.

“Not until you show me everything you and Kamado did together!” Sanemi’s hips slapped against Genya’s skin as he started to rut ruthlessly onto his little brother's wet pussy. The slick let Sanemi glide without friction. He placed his large hands on Genya’s lower back, holding him up as his thumbs pressed onto Genya’s protruding hip bones. Lifting Genya a little higher, the tip of Sanemi’s cock would barely catch on Genya’s opening before sliding past to rub on the underside of his pink twitching clit.

Sanemi held Genya at that position, threatening his tight heat with his cock. He could feel Genya trying to pull away, almost succeeding the few times he got scared when Sanemi’s tip kissed the entrance wide.

“Once you show me how needy you’ve been all these years, then I’ll get you spread and used.” Sanemi grunted out as he focused on abusing the outside of Genya’s hole.

Genya kept fighting Sanemi, trying to move so that Sanemi wouldn’t accidentally slip it in and fuck him deep like he’s always wanted. To feel his brother's warm and obscenely sized cock finally rested against his womb's entrance. Genya instinctively wanted to be thoughtless with only the need of his brother's brutal love violating him tenderly. And it was getting so hard for Sanemi to stop him. Not only was Genya much larger and harder to handle, he knew his own body and finally had a mind of his own to take care of it. Which only meant Sanemi had to find a way to put Genya back in place.

As a final attempt to overpower Genya, Sanemi pushed Genya’s legs right down to his chest again. With his Genya’s thighs pressed down his hole was lined up perfectly for fucking. Sanemi took a second to recollect his willpower. One thrust… just one thrust and he could feel that virgin tightness spasm on his cock. He could feel Genya’s first penetrative orgasm and flowing squirt warming him up before a long night of brotherly violation. Sanemi let out a growl before he slapped himself. Genya looked at him shocked but Sanemi moved on because lingering on the idea of Genya’s virginity was dangerous.

Holding Genya’s thighs together, he squeezed them around his cock as he angled it downwards. He made sure that it would press his tip right onto Genya’s little clit before slipping past to put pressure on his lower stomach. If Sanemi couldn’t give Genya an inside fucking, he’d do it from the outside.

Sanemi leaned down so his weight was pressed into Genya comfortingly. Genya wheezed, and his eyebrows turned up as he felt the familiar angle and technique that Sanemi had deployed on him. It was very similar to the few times they got close to fucking.

When Genya started to get his monthly bleed, for a week straight beforehand he was begging nightly for Sanemi to fuck him. Telling him that even if he’s too small it’ll be tight and feel good for Nii-chan. Or that he would say it didn’t hurt so Sanemi wouldn’t have to worry. Of course, Sanemi the level headed older brother would refuse, knowing Genya’s cycle. And they would settle in this current position as a compromise.

“Doenst this bring back memories?” Sanemi smirked as he felt Genya grip his biceps. His sturdy nails dug in but Sanemi didn’t care. “You always loved this position. You loved it so much that you said you wanted to make all our babies this way.” Sanemi licked at Genya’s lips as he spoke. He was so close again, and by how short of breath Genya was, he knew Genya was reaching his limit again too.

“Do you still want to do that? After you show me how much of a slut you’ve been, let’s make a big family. Like we always said.” Sanemi panted and licked and kissed his way back into Genya’s mouth, muffling Genya’s opposition. If he even had any.

At that, Sanemi could feel it. The slightest twitch of Genya’s abused clit and his hole clenching along the rubbing of his shaft. He was coming, and if it was a hard one Sanemi was excited for what was to come next.

“Baby, just let it out.” Sanemi encouraged as he pressed his tip deep into the surface of Genya’s soft stomach. He leaned lower to bite down harshly onto Genya’s barely developed Adam’s apple, trying to be able to hear the sweet sound of his orgasm.

As Sanemi kept thrusting at his full speed. Genya’s clit and lower stomach facing the sensitive abuse head on, he heard Genya moan out. It was stuttered and broken in between his crying and sniffling. His arms came up and wrapped around his brother's wide shoulders as he hugged him closer. Then Sanemi felt it. The hot rush of Genya’s orgasm wetting his cock and Genya’s thighs. It leaked down onto the sloppy futon, the small sound of thudded patter hitting Sanemi’s ears as he felt Genya squirming to press himself against Sanemi’s pulsing cock.

Both of their liquids meshed together. Making a sickly obscene sound emitting from Sanemi's thrust. Even though he was cumming, Sanemi didn’t relent. His hips held a moderate pace as he fucked agasint Genya still. His cock shot hot all over Genya’s poor blushing tummy, and even some of it leaked down into his folds coating the pink thing with white streaks. Sanemi unclasped his jaw from Genya’s throat, a red ring evident. And he looked down to his little brother.

Genya’s face was covered in tears. Drool ran down his chin and his nose was running from all his crying. His eyebrows were upturned and his mouth was trembling as he finished his orgasm. He was letting out shaky breaths and inhaling his cries.

Even though Sanemi had just came, the view of Genya’s ruined face made his semi-hard cock go rigid again. He just wanted to fuck Genya until he learned that this was all there was to them. Genya, the thing he loved most, no matter how much he hated Sanemi or how ruined he was, Sanemi would always be there to take care of him just like right now. And even if Sanemi didn’t know how to do it correctly, he would still try until he couldn’t.

After he felt Genya’s body loosen up, Sanemi slowly started to peel them from each other.

Sanemi gently unfolded Genya, lifting his arms off his neck and slowly placing his legs on the floor. Genya’s thighs went slack and opened up wide right in front of Sanemi, the mess all over his pussy and stomach made Sanemi groan and he leaned down to place a kiss on Genya’s collarbone.

“You don’t need to cry. Nii-chan’s here.” Sanemi softly said as he continued to kiss down Genya’s sternum. He kissed Genya’s lower left rib, then went down to press his lips into the spill of him and Genya on Genya’s belly button. Then he kissed both hips before placing one on Genya’s clit. He felt Genya’s thighs twitch but they didn’t move to cover up or kick him away.

“Ani- nii, ah uh,” Genya babbled before he broke into another sniffle, his two hands coming up to cover his face.

Sanemi continued down. He licked at the wet folds, his tongue trying to taste Genya’s orgasm before he looked below to the ruined futon. There was a dark puddle that Sanemi presumed was from Genya. Shamelessly he dove his head down and licked at it. It had the regular taste of cotton and soap, but there was the undeniable taste of Genya leaking through the fabric. Sanemi gave a few more licks, the salty taste of Genya’s orgasm lingering in the after taste but it wasn’t enough for Sanemi. He dipped his face back into Genya’s wet hole. His nose poking Genya as his tongue slipped out and started to work at his unfucked and desperate opening.

“No… nii-chan…” It was all Genya could say with his spent energy. It was the most he could do to defend himself with his tired body and confused mind. It just made him so much more vulnerable to Sanemi. His weak and pliant body was the perfect catalyst for Sanemi’s overbearing love.

Sanemi pulled away, tongue still wanting to taste all that Genya’s body could give right now. But he spoke briefly before he could defile and weaken his little brother even more.

“It’s gonna be okay. I’ll protect you until you’re ready to give it to me, Genya. I’ll keep you safe for however long it takes.”