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writethelifeyouwant · 4 years ago

Text

Sin

Created for: @ilysm-mybabybrother

Pairing: Dean x Reader / Sam x Reader / Dean x Sam

Warnings: Dub-Con

Additional tags: Cuckolding, Dirty talk, Praise kink

Word count: 2,076

A/N: Written for my @spnsecretsantaficexchange set up by my bae @negans-lucille-tblr as a present for the lovely @ilysm-mybabybrother (who I’ve been a long time stalker of, nbd). They requested something smutty with dirty talk / praise kink / cuckolding / and the brothers touching each other - potentially with Demon!Dean or BoyKing!Sam - I’ve gone with Soulless!Sam - I hope that’s still okay! I think I managed to work all the other kinks in there... Anyways I had a lot of fun writing it so I hope you enjoy it! Merry Christmas 🎄

Dividers: @firefly-in-darkness

Dean hadn’t let himself imagine this moment.

When Sam jumped into the pit with Lucifer riding shotgun, Dean made himself accept that. Bobby came back, Cas came back, but when Sam didn’t appear with them, he had to let him go. He promised he would let him go.

He kept his promise. He found a job in a garage in Texas. He wooed a girl who brought in a car that sounded like his old neighbours in Hell were trapped under the hood. He picked her up in the Impala and dropped her off on her doorstep with a kiss and a promise to call; and he actually called her. They weren’t living together, but they spent most of their time at each other’s apartments. Dean taught her a bunch of ways to doctor up boxed mac’n’cheese, and Y/N taught Dean how to mix cocktails with cheap whiskey that actually made it taste nice. The earth was still turning.

But now it had stopped, because Sam was standing in front of him, dripping in holy water and cut across his arm - not a monster or a demon, it was Sam. And Dean didn’t care that he got wet too when he pulled his little brother in for a bone crushing hug, because nothing could be wrong again now that Sam was back in his arms. At least, that’s what he’d thought two hours ago. Because now, as his wrists were getting rope burn and his ears were ringing with Y/N’s soft whimpers he knew something was wrong. Something was very wrong with Sam.

“Wow, Dean,” Sam had exclaimed when he introduced him to Y/N, who had been cooking dinner when he showed up at Dean’s door. “He’s lucky he met you first, darling.” Sam’s eyes dragged up and down her body hungrily, and Dean was taken aback because that was not like Sam at all. Usually Dean was the horndog between the two of them but, I guess you would get pretty horny being dead for a year, Dean reasoned to himself. He remembered that feeling, after he got back from Hell, of wanting something to really make him feel alive again. It would just be nice if Sam didn’t use his girlfriend to feel that.

But as the evening progressed, and dinner turned into drinks, and beer turned into liquor, Dean felt more and more like he might not get a say in the matter. Sam was all over Y/N, flirting harder than Dean had ever seen him flirt, and way better than Dean remembered him being at it, come to think of it. And Y/N wasn’t turning him away. She was laughing and smiling and getting him another drink, and being the perfect goddamn housewife all while Dean was sitting there watching the two of them.

And then when Y/N brought him a refill on his whiskey she shot Dean a look that he’d only seen once before, when she’d asked if they could take home the cute waitress so Dean could watch. Back then, Dean had thought he had the best damn girlfriend ever. He essentially got a front row seat to one of his favourite pornos. But the thought of her sleeping with Sammy... Dean wasn’t wild about that one. Except he didn’t know how to say that to Y/N and Sam, so he just kept drinking and hoped it didn’t come up. He wasn’t so lucky.

He tried to step in, when Sam put his hand on Y/N’s thigh and dug his fingers in - Dean gritted his teeth and choked out a cautious “Sam…” but the warning died in his throat when he looked into his little brother’s eyes and saw empty determination and cold hunger. He didn’t see his brother. “Y/N get away from him!” Dean shouted and reached for the knife stashed in the end table next to him, but Sam was faster, drawing his own and shoving it threateningly under Dean’s chin.

“Whatcha doing there, Dean?”

“What are you?”

“I’m your brother,” Sam teased, lips curled in an ugly imitation of Sam’s warm smile.

“What happened to you down there?” Dean demanded, because if this was Sam, something changed - something was different.

“Oh so much, big brother,” Sam laughed but there was no emotion behind it. “Learned a few things too. How ‘bout I show ya?” And now Dean’s hands were tied above his head with his own goddamn rope on his own goddamn bed, while Y/N was laid out between his legs with her head on his stomach as his own goddamn brother went down on her.

“Mm, you’ve got such a good little pussy, sweetheart,” Sam sighed, sucking on her clit and pulling a whine from her lips. Y/N’s breath ghosted over Dean’s naked cock, making it twitch despite his best efforts to be disgusted at what was happening right now. “Hope Dean’s been giving this cunt the attention it deserves.”

Y/N whimpered a little, but didn’t answer, prompting Sam to slap between her legs. “My brother been treating you good? Giving you enough cock to keep a pretty thing like you happy?”

“Yes,” Y/N gasped, clenching around the fingers Sam had just pushed inside her. “Yeah he’s good - mmh - so good to me,” she moaned.

“Yeah?” Sam sneered, twisting his fingers to push against Y/N’s clit and make her writhe. “What’s he best at? I’ve always wondered when I heard the moans from the next room.”

“Sam…” Dean complained, finding his impertinent big brother tone despite the situation he was in at the moment.

“His mouth,” Y/N sighed, happy to answer despite Dean’s protest. “I love his mouth, it’s so soft… and when he kisses you, it can take your breath away.”

“How romantic,” Sam smirked. “Always knew Dean was a bit of a softie deep down.”

“Fuck you,” Dean growled, pulling uselessly against his restraints again.

“Ladies first,” Sam laughed, and pulled his fingers from Y/N and sucked them clean, eyes boring into Dean’s while he swallowed his girlfriend’s slick. “Turn around baby, get on Dean’s cock,” Sam directed, landing a slap on Y/N’s ass when she turned and crawled over Dean. She shivered when she pressed his cock against her entrance, pulsing down slowly, working him inside her bit by bit.

“Oh look at you,” Sam cooed, brushing her hair off her shoulder so he could bite into her neck, pulling a moan from her chest. “Such a good girl teasing him like that, I didn’t even have to tell you to.” Y/N smiled to herself as she finally got Dean fully seated inside her, revelling in the stretch and fullness of it all. “How did Dean manage to find such a good little slut, huh?”

Y/N giggled lightly but didn’t say anything, just rolled her hips, drawing a gasp from Dean, whose eyes were squeezed tight in pleasure. Y/N felt so good around his dick. And he hated to admit it but he was in fucking heaven right now. This was so, so wrong but it was so hot, every other thought was being pushed out of his mind for the moment. He just wanted Y/N to keep moving, and he wanted Sam to keep talking.

Sam wrapped his fingers around the back of Y/N’s neck and shoved her forward, so she was lying chest to chest with Dean. “Give her a kiss Dean. It’s her favourite after all,” he teased. Dean wanted to find some retort to throw back at his brother, but Y/N’s lips were swallowing his before he got a chance, and he decided this was a better use of his breath anyways.

They kissed and licked and moaned as they ground together, Sam watching on and stroking himself lazily. He reached one hand forward and drew lazy patterns on Y/N’s ass which was bouncing so nicely on Dean’s cock. Sam bet it felt amazing to be inside her. “Mm, you’re fucking him so good, Y/N,” Sam praised, petting his hand down her back. “Look so hot with a cock inside you.” He crawled forward and draped himself over the couple, bumping his hips into Y/N’s and grinding against her ass. She moaned happily and fucked back harder, trying to rub against Sam as much as she could without pulling off of Dean.

A choked whine slipped through her lips when Sam’s cock caught between her cheeks and nudged at her other entrance. “Oh,” Sam grinned at her reaction and repeated his motion, pushing against the taut, puckered skin. “You have more in common with Dean than I thought.”

“What?” Y/N panted, confused and distracted by all the sensations she was swimming under.

“What, Dean never told you? Never asked you to fuck him up the ass?”

Dean’s eyes shot open, horrified. How did Sam know?

“You didn’t really think I didn’t know, did you, Dean?” Sam smirked, still rubbing himself against Y/N’s ass, but letting his fingers trail down further, skating over Dean’s inner thigh, making him jump. “You told me about Rhonda Hurley and the panties when I was sixteen, but I knew that wasn’t the whole story. I found the strap on after you picked me up from Stanford. How many girls you given it up to, big brother?”

“Fuck you,” Dean ground out, mortified.

“You know what, I just might,” Sam drew small circles with his fingertip the whole way across Dean’s skin until he reached his target. “What do you think, Y/N, should I give your boyfriend what he wants?”

“God yes,” she gasped, riding Dean hard, head buried in his shoulder.

Sam spit on his fingers and pressed them back against Dean’s ass, teasing his hole until it was nice and slick and he could slide a finger in without too much resistance. Dean was tense, trying to fight what Sam was doing, trying to fight wanting what Sam was doing, but he didn’t think he was strong enough. Sam’s finger twisting inside him actually felt amazing. It had been over a year since he’d let anyone fuck him and god, he had forgotten how fantastic it was, feeling this full, this whole.

Sam felt Dean accept what was happening, felt him relax around him, and took that as his cue to add more spit and another finger. Then another. He pulled them out when he felt Dean was ready and tugged Y/N back so she was sitting up against his chest. “You ready to cum, darling?” He snarled in her ear.

“Mmhmm,” Y/N whined, bouncing faster over Dean, but Sam hoisted her off his brother and sat her down between his legs where they’d started.

“You’re gonna get my cock nice and wet, aren’t you baby? Gonna be good and cum all over my cock?”

“Yes, fuck yes, please,” Y/N begged. Sam slammed in place inside her and didn’t hesitate before fucking her at a furious pace, rubbing his thumb over her clit and pulling scream after scream out of the girl writhing beneath him. He felt, with satisfaction, a surge of heat between her legs, and knew her cum was trickling out from between her thighs.

“Good girl,” Sam huffed, cold smile firmly in place. He pulled out and looked down to see veins of white dripping over his skin. “Got me nice and wet for your boyfriend, good job, sweetheart.” Y/N rolled out of the way, sated and dazed, and anxiously watched Sam climb over Dean and rub his cock between his legs.

Dean groaned, eyes pressed tight, trying to pretend he wasn’t about to let his little brother fuck him. Trying to pretend he didn’t desperately want his little brother to fuck him. But when Sam pushed in he couldn’t pretend that he didn’t love it. It felt so different to having a dildo in his ass, and it was so much better. It was warm, flesh and blood; his flesh and blood. When Dean clenched around him, Sam moaned and thrust harder into his brother. Dean loved how responsive he was, and did it again, earning himself another thrust.

“Think you’re being cute?” Sam panted and glared down at Dean, who smirked up at his little brother with his last vestige of self-respect.

“I think I’m adorable.”

“And I think you’re gonna regret that.”

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