Title: the world will end in fire: inferno
Author: alakewood
Warnings: Sam/Dean/Adam Wincest.
Rating: NC-17
Word Count: 3500+
Summary: Adam finds Dean asleep on the couch in Bobby's living room – and takes matters into his own hands. But it turns out Dean knows Sam and Adam's secret and it doesn't bother him. In all honesty, it kind of turns him on – a lot. Adam invites him to watch, but Dean's a hands-on kind of guy.
Disclaimer: As always, I own nothing.

oxoxo

Adam watched Sam from the doorway for a few more moments before turning and leaving the kitchen, heading out towards the staircase. He paused at the bottom of the steps, catching sight of Dean's boots propped up on the arm of the couch in the living room, and cast a glance back down the hall.

Quietly, Adam walked into the living room, took the half-full bottle of whiskey from where it was tucked between Dean's arm and his side and set it on the coffee table, nudging Dean's thigh with his knee. "Hey."

Dean squeezed his eyes closed and grunted softly as he tried to roll over and face the back of the couch. "Go 'way."

"Dean." Adam caught his half-brother's shoulder, held him still.

Dean cracked one eye open and peered at Adam in the dimness of the living room. "Hmm?"

"What time'd you get back? We didn't hear you come in." He carefully watched Dean's face for any hint of a reaction as Dean pushed himself up onto an elbow and blinked at him. Something flickered there but passed before Adam could discern what it was.

"Not that long ago," Dean said, voice low and rough. He cleared his throat and sat up completely, rubbing at his eyes with his fingers. "How's the shoulder?"

"Sore. Pulled the stitches a little earlier."

"Yeah?" Dean bit at his lower lip, gaze not meeting Adam's.

"It was my fault. But, hey. I'm gonna head on upstairs. I think Sam's still-"

"Adam?" Sam asked from the end of the hall at the edge of the living room.

"What?"

"What're you..." He saw Dean on the couch peering back at him from around Adam's hip. "Uh, hey, Dean."

"Hey," Dean greeted back, just as awkwardly.

"I'm gonna go to bed," Adam said, backing away from Dean and heading towards Sam. He stretched to his full height – just taller than Dean's six-one – and squared his shoulders, ignoring the slight tug of his stitches, as he crossed the short distance.

Sam's gaze flitted between his brothers' faces as Adam slowly made his approach, trying to anticipate whatever Adam was going to do because Sam recognized that determined set of Adam's eyes.

And Dean. Dean watched the scene in front of him with curiosity. Adam could feel the weight of his oldest brother's stare on his back even as he kept his focus on Sam, on what he was about to do. He sensed Sam's obvious anxiousness, placed a comforting hand on Sam's hip, thumb brushing under the hem against smooth, heated flesh.

Sam's eyes were immediately on Adam's when he felt the contact that wouldn't have been a big deal had it just been the two of them, but with Dean right there...

But Adam had already made up his mind. Couldn't do this on Sam's terms and have him start doubting their tenuous relationship and back out because he was afraid of telling Dean. Besides, Adam had a distinct gut-feeling that Dean not only wouldn't care about the nature of his and Sam's beyond-brothers bond, but that he already knew about it. So he angled his head just so as he raised up slightly on his toes to brush his mouth over Sam's. "You coming to bed?" he asked, dropping his hand on Sam's hip with a ghost of a caress over his cotton-clad thigh. He turned away from Sam's shocked, wide-eyed stare and started up the stairs. "Goodnight, Dean."

Sam stood motionless at the foot of the stairs for countless minutes that stretched out like hours, wondering hopefully – pointlessly – that, maybe, Dean hadn't seen Adam's brief, chaste kiss. Chaste in and of itself, but combined with the unconscious brush of Adam's thumb against the warm skin of Sam's hip, it spoke of a familiar intimacy. And part of Sam wanted to climb the stairs and disappear into his own room and pretend like nothing had happened. But he couldn't do that: deny Adam, lie to Dean. Besides, while it might not have been an ideal way to reveal his and Adam's relationship, another part of himself was relieved. He knew he should say something, but he didn't even know where to start.

It was Dean that broke the tense silence, cleared his throat as he reached for the bottle of whiskey on the coffee table. "Sammy?"

Sam took a deep breath to steel himself for whatever was about to happen and turned to face his brother. But Dean's face was carefully blank, even his eyes not giving anything away, as he held the open bottle towards Sam. Slowly, he walked further into the living room, accepting the bottle and taking a healthy swig before handing it back. "So."

Dean raised his eyebrows ever so slightly, taking a drink himself. He rolled the bottle between his hands, gaze focused on a gouge in one of the wooden floorboards. "So," he echoed. "How long have you...?" His left hand gripped the neck of the whiskey bottle while his right made a vague, circular gesture.

Sam leaned against the back of the easy chair diagonal from the couch. "Since August," he said quietly. "South Texas."

Dean nodded. "Is it serious?"

Sam hesitated, unsure how to answer that, feeling the heat of his embarrassment burning across his chest and up his neck.

"You fucking him?"

Dean's crudeness made him flinch, but he answered with a short nod, not even bothering to see if Dean was looking at him or not.

"You love him?"

He glanced up at his brother, hearing the roughness of emotion in Dean's voice, saw the weary resignation on his face. "Yeah."

Dean shrugged a shoulder. "Okay."

"Okay?"

"What do you want me to say, Sam? That it's wrong and disgusting? That it's gotta stop?" He shook his head. "This job- this life is hard. We both know it. Finding somebody that gets that? That understands and is still willing to be with you? There's nothing wrong with that, even if- even if it's with...your brother."

"Dean."

"Just be careful, Sammy, okay? Don't get hurt, and don't you hurt him."

"I won't." They were both silent for a couple of long moments. "Dean?"

Dean took another pull from the bottle before recapping it. "Hmm?"

"How long have you known?"

He shrugged again. "A month, maybe? I don't know. I figured something was up, the way the two of you were acting. Then, this last job. I just- I don't know why you kept it a secret."

"Really? We're brothers. We're not supposed to- to feel like this."

"I guess what I meant is that I don't know why you kept it a secret from me. We are brothers, Sam, and nothing – who you love, who you fuck – is gonna make me...love you any less."

Sam could do nothing more than stare at Dean – it wasn't often his brother spoke so openly about feelings much less love. Brotherly or otherwise. He had to wonder how much Dean had had to drink at the bar, if he'd had more than just half a bottle of whiskey when he returned to Bobby's. "Dean."

"Yeah. Total chick-flick moment." His nervous chuckle sounded forced. "You should probably, you know." He nodded towards the stairs.

"Are we...are we okay?"

"Of course."

Sam waited another minute, watched Dean as he purposefully avoided Sam's gaze. "Goodnight, Dean."

"'Night."

The stairs creaked loudly in the quiet of the house under Sam's shifting weight as he climbed them. He passed Adam's open door, saw him sitting there, waiting. "That couldn't've been too bad," Adam said, offering a small smile in apology. "Couldn't even hear you guys."

"We didn't argue. He said he knew- well, that he'd assumed, anyway."

Adam pushed off the bed, crossed the short distance to where Sam stood, filling up the doorway, the bright hallway light playing shadows off Sam's profile, his face a study in contrast. "He's okay with us, isn't he? Like I told you he would be." He moved closer, hands settling on Sam's hips before slipping underneath his shirt to skim over his lower back as Adam nipped at his bottom lip.

Sam walked Adam backwards, out of the doorway and towards the bed. "How'd you know?"

"My birthday." He opened his mouth to Sam's, kissed him deep until he almost forgot what he wanted to say. "We snuck out the back door while Dean was hitting on that girl at the bar. You remember?"

Sam's fingertips traced idle patterns over Adam's spine and ribs, nails scratching lightly. "Mm," he affirmed, nose brushing against the sensitive place beneath Adam's ear where neck met jaw as he sucked a bruise over Adam's thrumming pulse. "Remember tearing a hole in the knee of my favorite jeans, too."

Adam's laugh left his lungs on a rush of breath that turned into a gasp as Sam introduced teeth and bit gently at his throat. "What you don't remember...shit, Sam." He let his hands slip lower to Sam's ass to pull their hips flush. "Dean. He didn't- He came looking for us."

Sam stilled completely, hands going slack on Adam's body. "What- what are you saying?"

"Dean watched us. He watched you go down on me in that alley." He tightened his grip on Sam, slowly thrust against Sam's hard length with his own and groaned. "I could see how hard he was, Sam, just from watching us. He touched himself; bet he got off thinkin' about it later."

Sam's hands fisted against Adam's back. "Fuck."

"Probably sprawled out on the couch right now, hand on his dick, tryin' to imagine what we're up here doing."

"Don't gotta imagine when I can watch," Dean said, voice low and gravel-rough, from the doorway a matter of feet behind Sam.

"Yeah," Adam breathed, cock twitching against his hip, against Sam. "Shit, yeah."

"You okay with that, Sammy?" Dean entered the room, rounded the bed to stand by the open window, starry night sky as a backdrop.

Sam's gaze held Dean's as his hands clenched at the fabric of Adam's sweats. Adam's mouth closed over the highest point of his clavicle where the bone met the thick cord of muscle from his neck at his shoulder. "Yeah," he said, the word drawing out into a moan, fighting to keep his eyes open.

Adam tugged at the hem of Sam's tee. "C'mon, Sam, gotta see you."

Sam pulled his shirt over his head and carefully helped Adam out of his as well before their mouths met in a clashing of teeth and slick tongues. Adam wedged his hand between their bodies, flat of his palm dragging over the head of Sam's cock. "Oh, God."

"Sure you're gonna be able to just watch, Dean?" Adam asked, tossing a heated glance over his shoulder, Sam's mouth dropping to his neck to mark him up.

Dean pressed the heel of his hand against the tenting denim at his groin, gaze stuck on the place Adam's hand disappeared between his and Sam's hips. "No," he ground out, pushing off the windowsill and moving to stand beside his brothers.

Adam's hand left Sam's dick to wrap around the back of Dean's neck and pull him down to his mouth. "Shit, Dean," Adam laughed when they separated.

Sam's eyes met Dean's again. "Sammy. Fuck." Dean's fingers wound into Sam's hair before he attacked his mouth with brutal want.

"Come on," Adam panted, pushing at Sam's pants to release his cock and wrapping his hand around the thick girth of it. "Bed. Now. Please."

They backed up as a group, Adam's hand tugging at Sam's leaking cock, Dean with his tongue shoved halfway down Sam's throat as they kissed desperately. "So good, Sammy," Dean said quietly, abused lips catching and dragging against the stubbled skin of Sam's cheek. He kicked out of his boots as he tugged off his shirts, shoved down his jeans and briefs, and went back to kissing Sam as he slowly jacked himself.

Adam sat heavily on the bed when the backs of his knees hit the mattress, putting him nearly at eye-level with Sam's dick. He leaned forward and latched his mouth onto the head, curled the fingers of his left hand around the base as the fingers of his right covered Dean's on Dean's cock. The eldest Winchester brothers moaned in something too rough and raw to be considered harmony.

One hand cradling the back of Adam's skull, the other gripping at Dean's hip, Sam tipped his head back and closed his eyes tight. "What are we doing?" he gritted out.

Adam pulled off Sam's dick long enough to answer, "Nothin' none of us don't want. 's good, isn't it?"

Sam glanced from Adam's wide, earnest, lust-filled eyes to the undeniable heat of desire of Dean's stare. "Yeah, it's good."

"Good," Dean said and bit at Sam's bottom lip before pushing him closer to the bed. He climbed onto the mattress beside Adam, sat on his knees.

"Want you to fuck me, Dean. Can he, Sam? Is that okay?" Adam shoved further back onto the rumpled blankets, spread his knees wide as he stroked himself idly.

"Oh, fuck," Sam breathed. "Yeah, Adam, whatever you want."

"Want you to fuck Dean while he's inside me."

"Fuck, yeah. Me, too." Dean pushed Adam down to the mattress, sucked at his own fingers before pressing them against Adam's hole, still slightly loose from having Sam buried inside him earlier in the evening.

Sam pulled open the nightstand drawer and dug out the somehow half-buried lube as Dean and Adam situated themselves on the bed, tore two condoms off the strip of packets, and climbed onto the mattress behind Dean. Too many lines already crossed, Sam didn't hesitate spreading apart the taut cheeks of Dean's ass and swiping his slick tongue over his hole.

"Jesus fuck!" Dean arched his back, cock throbbing hard and dribbling precome, pushed closer to Sam's mouth. "God, yeah."

It didn't take Dean long to work Adam open, Sam's steady hands rolling a condom over Dean's straining erection, Sam's own cock riding slick along Dean's crack as their bodies pressed close. Adam pulled his knees up towards his chest as he watched his brothers kiss over Dean's shoulder and Sam guided Dean's dick into Adam's twitching hole. "Oh, God. Shit, yeah. Dean."

Once Dean's balls were snug up to the curve of Adam's ass, Sam press a wide palm against the small of his back, pushed him just the slightest bit further over Adam's body. "Don't move, and spread your legs for me."

Dean did as Sam instructed even as he felt the slick-hot muscles of Adam's inner passage clench and unclench around him. He braced his hands above Adam's shoulders, leaned up Adam's chest to kiss him as Sam tongue-fucked his hole. He moaned into Adam's mouth, pressed harder back against Sam's, was held immobile by Sam's gigantic hands.

Two lubed fingers replaced Sam's tongue, then three. Then Sam was carefully tearing open the other condom packet with his teeth. He pulled his slick fingers from Dean's hole and slid the condom down his cock, stroked himself once, twice with the excess lube smeared across his hand, and started pressing into Dean. Panting with restraint, he slowly sank into his brother until he was buried deep, front of his thighs pressed to the backs of Dean's. "Dean. God."

"Move, goddammit," Adam begged from beneath them, rolling his hips up best he could under the weight bearing down over him.

Sam pulled out halfway, Dean following, seeking more, better friction, and Sam pounded into him hard, forcing him back inside Adam and they let loose a chorus of moans and grunts, repeating the action. Adam's calves brushed over Sam's hips and sides as he arched up into Dean. Sam stroked fingers along the outside of Adam's knee before both of his hands went to Dean's hips, gripped him tight, thrust harder, knocking Dean down to his elbows.

"Come on, Sammy, fuck me. Yeah, yeah, just like that," Dean bit out, spreading his knees even wider so Sam could go deeper.

Sam affixed his mouth to the back of Dean's neck, licking, biting, sucking; marked Dean up as he was wont to do to Adam. "Gonna feel me, all over." His teeth dragged over Dean's jackrabbiting pulse, sunk shallowly into taut, straining muscle of his neck.

Dean kissed Adam filthily, all tongue and teeth and no finesse, forcing a hand between their bodies to wrap around Adam's dick. Two quick tugs and a well-aimed thrust glancing across his prostate had him coming hard and hot all over his belly, striping up Dean's forearm. "Shit," Adam exhaled shakily, fingernails digging into Dean's shoulder blades. Dean continued moving with Sam, brutal thrusts driving him forward. "Yeah, Sam. Fuck him hard, make him come." He dug his heels into Sam's ass, met Dean's thrusts best he could in his position.

"So close," Dean groaned, forehead pressed into Adam's sweat-sticky shoulder. "Sam. Sammy, please."

"Yeah, Dean. Yeah, got you." He smoothed a hand up along Dean's spine, other gripping him tightly at the hip, changed the angle of his thrusts until Dean was moaning nonsense and Sam's name, rocking back into Sam then forward into Adam.

"Yeah- there, right there." Dean's fingers clawed into the rumpled sheets, let Sam fuck into him. "Fuck. Sam."

Sam felt sweat trickling down the back of his neck, between his shoulders, quickly shoved his damp bangs out of his eyes, gaze focused where he disappeared into Dean's body. Both hands on Dean's hips, Sam dragged him back onto his cock, rocked back onto his knees and hauled Dean up onto his lap. "Oh, fuck."

"Oh God," Dean gasped, shooting into the condom clinging loosely to his dick as Sam penetrated him impossibly deep, slammed right into his prostate.

The tight, rippling heat of Dean's ass gripping his cock had Sam following nearly immediately, huge hands stroking over Dean's tense thighs, fingertips digging into muscle.

Adam rolled to the side, watched as Sam and Dean came down from their orgasm, Dean's head turned at an impossible angle to close his mouth over Sam's in a slow, gentle kiss. "God, that was..." He shook his head, fingers ghosting over Dean's knee. "Awesome."

Sam lifted Dean from his lap, playfully shoved him down to the mattress and reached for the condom hanging from Dean's cock before slipping off his own. He grabbed his shirt from the floor and straddled one of Adam's thighs as he wiped the tacky come from Adam's stomach. Passing the shirt to Dean, he leaned down and covered Adam's mouth with his own, kissing him lazily and deep. "Fucking crazy's what it was," he laughed against Adam's slick lips.

"Crazy hot," Dean amended, tossing the shirt to the floor, reaching for Sam's hip and tugging him down to the mattress between him and Adam.

Sam was still trying to wrap his mind around the how it all happened as he collapsed against Adam's side, Dean pressing up tight against his back, barely enough room for two grown men on the full-sized mattress, let alone three.

"Stop thinking so loud, Sammy," Dean chastised, palm grazing along Sam's hip, pressing his nose into the sweat-damp hair at Sam's nape. He sucked a kiss into the salty skin there. "We'll figure it all out later. Too fucking...fucked out to think about it now."

"Mm," Adam agreed. "Was good." He rolled onto his side, onto his good shoulder, and slipped one of his legs between Sam's. "We're good, right?"

Sam kissed Adam again, brief and chaste, close-lipped. "Of course." He felt Dean's heat behind him, Dean's mouth on his skin, held Adam a little closer. "Better than."

"Then there's nothing to figure out."

It was kind of hard to argue with that logic – wasn't like they could go back to before after what had happened between them. Wasn't like any of them, if they were completely honest with themselves, really wanted to go back. Sam thought back to the words Dean had spoken to him not even an hour prior. This life is hard...finding somebody that gets that? That understands and is still willing to be with you? There's nothing wrong with that...Nothing is gonna make me love you any less.

Seemed they'd all gotten lucky, Sam thought as he drifted off to sleep, Adam's breath ghosting over his throat and Dean's light snores in his ear. They got each other, in every way. They loved each other in ways few others could ever understand. Brothers, lovers; three strong, through whatever could be thrown their way, and this new level to their relationship would only make them stronger. And there was nothing wrong with that.