Archive of Our Own ^beta

"Derek?" Stiles asked, his head resting on his boyfriend's naked chest.

"Yes," he answered, his fingers playing in Stiles's hair.

"Remember when we talked about the one person we'd both like to be with?"

Derek smiled, immediately understanding where the conversation was going. The two of them had an unconventional relationship, but it worked for them. It was open to a point, the two finding guys to sleep with away from their partner, always looking for the perfect third that they could share. They had one person in mind but figured he was off limits for both of them.

"I'm guessing he wants to join?" Derek asked.

"He's curious. I mean, he doesn't totally understand but he didn't outright refuse."

"And how did this conversation come up?"

"I just asked," Stiles laughed.

Derek did too. "Kinda like how our conversation started when you asked which pack member I'd like to fuck?"

"Well..."

"And that's how we got here in the first place. Now, what did Scott say? Was he interested in being our third for a night?"

"He wants to talk to you before agreeing, make sure that you aren't going to go all 'rival alpha' on him for touching me."

Derek laughed again. "I'm guessing he doesn't know about our arrangement."

"He doesn't, but I think he'd be willing to play with us individually once we do it all together."

The werewolf's cock rose at the thought. The action didn't go unnoticed by his boyfriend who playful tugged on it over the covers.

"We'll talk to him together. I want us all to be on the same page."

Stiles smiled, slowly stroking the hard cock still. "Fine by me. But first I have another idea..."

###

Scott was sitting uncomfortably rigged across from the couple. Derek had his arms crossed over his chest, glaring at the other alpha. Stiles sighed, hitting his boyfriend on the shoulder to get him to stop intimidating Scott. He relaxed a bit but didn't stop being intimidating.

"So," Derek started, letting the word just hang there.

Scott fidgeted in his seat.

Stiles sighed again. "Derek, don't be an ass. So, what did you want to ask, Scotty?"

"I'm just wondering if you're okay with the arrangement, Derek." The other werewolf smirked at him, about to say something but Scott kept going. "I know you and Stiles are open but I also know you've never shared someone either."

The couple looked at each other and then back at Scott in shock.

"You know about..."

"Your open relationship? Yeah, the whole pack does."

"What?" The two shouted.

"Did you really think we didn't know? Remember that time a few months ago we all went to the club? We were dancing and having a good time when we lost track of you two. We looked you you guys everywhere until we found Stiles making out with someone. At first we thought Stiles was cheating on Derek and we were going to tell you but then we found you fucking some guy in the restroom. After that we just figured you guys were open and left it alone." The two were embarrassed that they had been caught like that. "And you honestly didn't think Danny wasn't going to talk about Derek's unbelievable cock? He talked about it for weeks."

"And how do you know we've never shared anyone?" Stiles asked.

"Because you'd have shouted it from the rooftops, dude. Or at least you'd have told me about it." There was a bit of an accusatory tone to his voice.

Stiles looked away, guilt in his expressio n.

"You still want to be our third?" Derek asked.

"Yes," Scott immediately answered.

"What makes it more appealing? Getting to fuck Stiles? Or getting fucked by me?"

"Both."

Derek smirked, having scented the air when he asked those questions to see if Scott was telling the truth. He stood up, unexpectedly. "Let's take this to the bedroom."

Scott was a bit stunned as he watched the other alpha walk away. He quickly turned to his best friend, who winked before following his boyfriend. Not wanting to miss the opportunity, Scott followed behind, if he was naked his cock would be leading the way. Entering the bedroom, he saw Stiles on the bed, having taken off his shirt, or maybe Derek did that for him. The older alpha was off to the side, looking just as intimidating as before complete with the crossed arms.

"Why don't you join me on the bed," Stiles purred. Something about that tone made Scott forget about the imposing alpha nearby. He made his way forward, grabbing the hem of his shirt to pull it over his head.

"Let Stiles do that," Derek said from the sidelines.

Not wanting to piss off the other alpha, Scott moved even closer, allowing the human to lift his shirt. Stiles's knuckles grazed against his skin, letting him feel his best friend's muscles. When Scott's nipples were exposed, Stiles took the left one in his mouth and gently sucked, causing the wolf to moan. The combination of the stimulation and knowing that it was someone Scott considered a brother doing it was almost too much for the young wolf.

"You should stop, my love," Derek cooed. "You don't want him to cum too quickly."

Stiles pulled back, causing the wolf to protest the lack of pleasure. His hands moved over Scott's body, kissing his neck and giving some love bites every so often. Scott let his own hands wonder over his best friend's exposed chest, lightly biting Stiles's nipples. He loved the little moans the human made, the sounds working on both of the wolves from the way Derek was palming his crotch. Scott mouthed his way down Stiles's chest, his friend's happy trail tickling his skin as he went. Eventually, he got to the waistband of Stiles's jeans, slowly opening them up with a flick of a claw.

With his boyfriend's mouth free, Derek went to sit on the bed next to him, kissing the human with his usual amount of passion. Stiles bit Derek's lip a bit in the heat of the moment causing the wolf to growl, more from pleasure than a warning. The human's hands moved underneath his boyfriend's shirt and started to lift it up, wanting him to be on the same page. While the couple were doing that, Scott was on his knees working Stiles's pants off, the human's boxers were tented and his dick was starting to poke out of the fly. Knowing that that wasn't the cock that he should be focused on, Derek pulled the other wolf to him, already having popped the button on his own jeans open.

Scott was slightly intimidated, having heard Danny gush about the older alpha's cock but that didn't stop him from opening the pants. To his surprise, Derek had gone commando so his girthy cock sprung out when the zipper flaps were moved out of the way. Scott moved back, almost getting hit in the face by the huge cock, a little worried how he was going to take it.

Feeling a slight pull forward, Scott looked up and saw that Stiles was guiding him closer to Derek's cock. Out of instinct, the young wolf opened his mouth, taking the head inside. He had never sucked anyone as big as Derek but that didn't stop him from trying.

"He looks good like that," Stiles purred, his hand still in Scott's hair, guiding him further down.

"And you're going to look just as good when you're sucking him later," Derek said before kissing his boyfriend again.

"First you, and then I'll have my fun," the mischievous human winked.

Scott was too preoccupied trying not to choke on the huge cock invading his mouth to listen to what the couple was saying. He was more than halfway down when he was suddenly pulled off the cock, Derek looked like he was ready to blow his load.

"Didn't want to finish that early," Stiles chuckled.

Oxygen was going back to Scott's brain so he didn't realize that he was pulled up from his kneeling position and laid on the bed. It wasn't until his legs were pretty much by the side of his head that he realized that someone had taken his pants and underwear off. His mind was back online when he felt the first pass of Derek's tongue traveling along his crack until it settled at his exposed hole. Scott couldn't help but moan as his hole was eaten so expertly. The older alpha knew what he was doing, but also knew how to hold back so Scott wouldn't cum. Scott's cock was right above his own face, every so often dripping precum. He opened his mouth to get a taste of himself, almost cumming from that alone. Stiles must've sensed it so he grabbed onto his friend's balls and gently squeezed them. The jolt of pain made him whimper but his cock was still rock hard.

"If you don't fuck me now," Scott whined, "I won't be able to fuck Stiles later."

Derek moved away, a smirk on his lips. He was able to easily flip the younger alpha so that he was bent over the edge of the bed. Stiles moved along with them, taking his boyfriend's cock into his mouth and sucked it all the way to the root, something he'd done multiple times. He only did it enough times to properly coat it with his saliva, and then helped position it to Scott's waiting hole. Stiles watched as Derek's cock disappeared into his best friend, a grin on his face as he listened to Scott's moans mixing with Derek's grunts. The older alpha started slow, knowing he was a lot of to take, but eventually it was too pleasurable to not just pound into Scott. He knew the other werewolf could take it, something he had to contain because of his normally human partner. Stiles had never seen Derek fuck before, always being in the receiving end of it, so he was fascinated by how powerful the man looked as he slammed his hips forward, over and over again.

Scott was practically a puddle as he was fucked within an inch of his life. Turning his head, he could see his best friend watching in absolute wonder. He needed to taste Stiles so he reached forward and pulled the human to kiss him. The kiss wasn't enough for the young alpha.

"I need to rim you," he panted.

Stiles's eyes lit up before he pulled down his pants and underwear and got on all fours in front of his best friend. The pale and mole covered ass was exposed, his hole right there in front of a horny and fuck drunk wolf. Scott grabbed onto Stiles's legs and pulled him towards himself, ready to devour the human.

Stiles threw his head back in pleasure as Scott devoured his hole, all the while Derek was continuing his assault on the young wolf. Watching his partner being pleasured caused Derek to cum quicker than expected, filling the other alpha with his load. Scott moaned as he was filled, amazed that he didn't cum himself.

Hearing his boyfriend's grunts as he came, Stiles turned over and moved closer to the edge while raising his legs. "Fuck me," he whispered to his best friend.

Scott didn't need to be told twice as he positioned himself between Stiles's legs, his own hard cock pointed to the readied hole. Sinking in, the two both moaned. Derek was still inside Scott, shifting when the other alpha moved, and was starting to get hard again as he watched his boyfriend get fucked by someone else. With Scott thrusting, the older alpha didn't have to do anything, letting Scott do all the work, simultaneously fucking and getting fucked. The grunts and moans from the three filled the room, creating a symphony of pleasure none of them had ever heard before.

Because of the double pleasure, Scott was the first to cum, completely unloading inside his best friend. Stiles quickly followed, jerking his dick until his cum was falling on his stomach and chest, a few drops even landing on his face. Having already cum once before, Derek was the last to cum, pounding into Scott with all his might. Because the young wolf was still inside the human, Stiles felt the powerful thrusts, something he'd never felt before because Derek was scared about hurting him. It was a relief to know that he could most likely take it but it was probably better to receive it through someone else or he might've had trouble walking for the next few days.

"That was amazing," Stiles shouted as best as he could still catching his breath. The two wolves chuckle at the excitement of the human, slowly removing themselves from each other. "So, Scott, wanting join us again sometime?"

The young wolf looked at the hopeful expression on his best friend's face and then looked at the other alpha who nodded his head. "I'd love to."