Posted originally on the Archive_of_Our_Own at https://archiveofourown.org/
works/506953.
  Rating:
      Explicit
  Archive Warning:
      Underage, Rape/Non-Con
  Category:
      M/M
  Fandom:
      Supernatural
  Relationship:
      Dean_Winchester/Sam_Winchester
  Character:
      Dean_Winchester, Sam_Winchester
  Additional Tags:
      Dubious_Consent, Emotional_Manipulation, Incest, First_Time, Pushy_Dean,
      Reluctant_Sam
  Stats:
      Published: 2010-09-08 Words: 3578
****** For Good. ******
by Miss_Lv
Summary
     Dean remembered when he shot off fireworks with Sam as a kid but he
     conveniently forgot what happened after Sam threw himself at him. In
     the back of the Impala Dean fucked his little brother, unable to
     resist anymore.
Dean set himself up for this, it’s his fault more than Sam’s and he’s supposed
to be the responsible one, the big brother. But he can’t go back now, he just
fucking can’t.
They’re cramped together in the impala’s backseat, Sam tucked under Dean while
he presses soft kisses against his innocent brother’s mouth. Dean knows only a
few chaste touches are all Sam has known and he takes a perverse pleasure in
teaching him to open up for Dean, to let him slide his tongue passed compliant
lips and gave Sam deep, less then pure, attention.
Jesus he tastes so good.
Dean’s restraint has been waning for a while now, since Sam started to
tentatively masturbation at night. Thinking his big brother asleep in the bed
beside him Sam’s been touching himself. Right there, with Dean goddamn inches
away from him. It’s only been their dad’s presence that’s kept Dean’s hands to
himself. But with John out on a hunt Dean is free now to take what he wants,
what’s his.
The fireworks had been an innocent gesture, for fun, and nothing nefarious.
Then Sam had thrown himself at Dean, skinny arms snaking around his middle
while his kid brother pressed his face to Dean’s shirt.
He’s popped wood right there and in record time had Sam in the backseat,
uneasily letting Dean coax kisses from him.
But it’s not enough; he wanted to take this slow, do it right for Sam but it’s
been too long a wait for him.
Dean’s patience is done with.
“Let me,” breathes Dean, “Let me fuck you. I want to fuck you so bad.”
Sam squirms under him, nervous and unsure as his brother’s bigger form blankets
over his tiny one. Biting his lip, he turns his face away and Dean drops his
mouth to the exposed neck, bypassing soft kisses for the slick heat of his
tongue over the fluttering pulse. Without thought he presses his baby brother
down into the seat a bit harder, rubbing his erection along the smaller boy’s
thigh. Thin layers of clothing are all that’s separating them.
“D-dean, please. I don’t think we should,” Sam lets it out in a rush of words,
nerves shaking hard as he tries to protest his brother and that takes something
out of him, Sam adores Dean, loves him, but they’re brothers, it’s incest.
Dean reaches between them and cups Sam’s crotch, pressing against the hard-on
he feels under the denim. “Fuck Sammy, you want this, don’t tell me you don’t
want this.”
“No,” comes the pointless denial, his little brother’s voice hitched with the
threat of tears and fuck, it shouldn’t, but it just makes Dean harder. This has
to happen between them, tonight, right here, Dean is going to fuck his baby
brother. He has no intention of taking no for an answer.
“This is wrong, it’s sick,” Whimpers Sam and Dean answers by biting his neck,
making the petite body under him tense and twist to get away. Dean has often
reassured Sam that he’ll hit his growth spurt eventually that being so small
won’t last forever. But Dean loves his tiny little body, all skinny limbs and
soft smooth skin. There’s a clear difference in their size, he looms over his
brother and it gets him hard, Dean’s fantasized about this before, loved the
idea of how little Sam is under him.
Letting go, Dean presses a kiss in apology, flicking his tongue along the wet
skin. Reaching with both hands he grasps that pert ass and lifts Sam to grind
him against his arching cock. Sam makes the broken noise again, his hands
holding Dean’s t-shirt in a trembling grasp as he tries unsuccessfully to push
his brother off him. Dean can feel Sam twitching against this thigh, knows his
kid brother wants this, wants to be fucked by him. Sam’s jerked off at night,
muffling sounds and hissing Dean’s name. He knows Sam wants this, that he’s old
enough now to take it. But the kids got a moral compass and sticks to it, if
Sam thinks its wrong he’ll fight it tooth and nail. So Dean has to take it, but
he knows his brother wants it under his protests, and he’s going to make him
admit it.
“Gonna make you love it,” Dean reassures, pressing kisses along his face,
rubbing his nose in the soft hair and breathing in the smell of his own
brother.
“Dean, please stop,” He likes the way Sam’s breathing is uneven and his voice
raspy and weak. Pulling back a touch he looks down at the wide-eyed boy under
him, Sam’s just as hard as he is but he probably doesn’t understand why.
“Do you love me Sammy?” Dean coaxes, reaching to press a soft touch of his
mouth along Sam’s full pouting lips.
“I…” The poor kid looks confused and terrified, his fingers digging into Dean’s
shoulders again.
“Don’t you?” Dean presses in a forlorn tone, his face against Sam’s neck so his
little brother can’t see that he’s teasing him.
“Yeah!... You know I do,” Sam hurriedly replies this time, still squirming
under him while Dean lets go of his ass to come round and undo the button of
Sam’s jeans.
“Then you’ll let me, if you really do Sammy, you’ll let me.” Dean whispers,
licking and then biting down along his throat again, Dean can’t help but love
his pale delicate throat. Flicking his tongue along the rapid pulse he eases
Sam’s jeans open and snakes a hand down to grasp his baby brother’s throbbing
dick. Lightly he runs his fingers along the under side, rubbing his palm over
the tip, feeling the moisture there and hearing Sam gasp and sob helplessly.
Letting his teeth sink into his brother’s neck he sucks hard and wraps his hand
around his brother’s erection, making the boy thrust mindlessly.
“Dean!” He sounds innocent, so young and confused even as he’s shoving into his
brother warm, firm grip. Leaning back Dean looms over him again, watching his
brother as he gasps and shakes, clutching his shirt desperately as his body
jerks into every touch.
“Does it feel sick now?” He mocks, grinning at the way shame flushes across his
kid brother’s adorable face.
“I’m gonna fuck you Sammy, and you’re gonna love it,” Sam opens his mouth to
reply and Dean gives him a rough jerk, forcing a sudden moan from the
inexperienced youth. All the kid can manage now is a frantic shake of his head,
whimpering as he wiggles under Dean, pressing in all the right places as he
thrusts up helplessly, needing the friction with obvious mounting urgency.
Dean presses his mouth against Sam’s forcing his tongue in as he licks and
sucks while his hand works him over. Sam’s small hand, fucking tiny, lets go of
his shirt and suddenly snakes around his neck, holding Dean close with all the
force his brother can muster. Whimpers and broken sounds escape his throat
while Dean keeps a steady rhythm, jerking him off. Sam breaks the kiss roughly
falling against the seat and arching his back, mouth hanging open. Dean’s
little brother looks utterly wrecked, wide eyes staring up at him with such
vulnerable terror.
“It’s ok,” he soothes and it’s all the he needs because Sam gives a drawn out
sob and he comes undone. Dean can feel the pulsing of his brother’s cock, the
sticky warmth coating his hand seconds before his brother goes limp under him.
It takes him a second, he drops his head against Sam’s shoulder and swallows
hard, doing everything he can to not come in his pants while his little brother
tries to catch his breath. Slipping his hand free Dean inspects the mess and
Sam goes ridged under him. Glancing up Dean sees him staring at his come
dripping hand with open horror.
“Sammy,” Dean scolds lightly, as if his little brother was the one at fault and
fuck, the kid crumples under him, tears overflowing as he bites his lip to
swallow little sobs.
“I'm sorry,” he says over and over, tears running down his face as he looks
anywhere but at his older brother. The kid is shaking again, a complete mess
and Dean feels a possessive hunger uncoiling in him, twisting him.
“S’ok baby,” softly he soothes him, pressing a soft kiss on his brother’s brow,
gently licking the tears away.
“Me and you are different Sammy, you know that?” The kind tone makes Sam
finally glance up at him, gaze desperate as he nods his head.
“We’ll never belong anywhere, we’re freaks, but we’re not alone at least,”
using a warm voice Dean takes his clean hand, resting his weight on his elbow,
and cups the kids face, rubbing his thumb along his cheekbone.
“I’m right here, not gonna go anywhere,” Sam’s nodding again, his hands
wrapping around Dean’s wrist, fuck he’s so small as his fingers wrap around
Dean’s arm, looking for comfort. Smiling down he waits until Sam tentatively
returns it before he leans down to kiss his little brother. Sam is still stiff
but not nearly as resisting to him. Bringing up his soiled hand Dean leans back
a touch to rub the sticky come along Sam’s lips. All to easily Dean presses a
finger and Sam lets him, obediently sucks the digit in his mouth. While he
flushes red and drops his gaze from Dean, he’s still cleans his own goddamn
come off his brother’s hand. Timid soft licks are testing Dean to his utter
limits, his erection is painfully hard now and he wants his brother right now.
“Will you let me Sammy? Wanna fuck you, over and over, you’re all I’ll need,
gonna keep you for good,” he knows he can force him, can pin his baby brother
to the leather seat and fuck him senseless, but he wants Sam to give in, wants
him to break for Dean, to admit.
“F-for good?” The tiny hopeful note is clear in Sam’s voice and Dean bends down
to kiss his little brother soundly, tasty salty come and slipping his tongue in
for more. Gently he lets more of his weight fall against the petite body under
his, Sam’s legs tangle with his own while Dean keeps the bulk of his weight up
on his elbows.
“Yeah, forever, just you baby, me and you, all the time, whenever we want,”
Dean can’t keep his mouth to himself, he just can’t, so he licks and bites
every inch of skin his can get at, all the while his hips start to roll,
pressing his sore dick against the pressure of Sam’s thigh still trapped
between his own.
“No more girls?” Dean can feel the triumph running through him as he grins
against Sam’s neck.
“Nope, just as long as you can take care of me. Can you?” Without looking up
Dean can hear Sam thinking, knows his little brother has already decided and is
trying to reassure himself now. Without a single protest from him, Dean eases
Sam’s jeans and underwear down and off. Sitting back, he reaches to shove off
one of Sam’s shoes so he can get a leg free completely. Then he just pushes the
pants down, leaving the clothing tangled on his other calf as he turns his
attention to the exposed flesh.
“You gonna be a good boy for me?” He can just take it, they both know it at
this point, but Dean wants to hear it. Cupping Sam’s dick he feels the slight
twitch and grins, wrapping his hand to coax his brother around a second time.
“Say it Sammy.”
“Y-yeah,” it’s like the very last string of resistance breaks then, because Sam
just goes limp under him, fingers curling around his wrist but not trying to
stop him as the kid just lays spread out in the backseat, ready and willing to
let Dean do whatever he wants.
“You like being touched?” Dean questions leaning down so he can fumble under
the seat for the lube he keeps there. Sam just nods his head in positive, not
giving the slightest fight and if Dean though the resistance was hot the
compliance is mind blowing. Leaning down to press a soft kiss along those
swollen lips, Dean takes his time, exploring and showing his kid brother how to
tongue fuck while he slicks up his fingers. Reaching between Sam’s legs he rubs
the cool gel along his thigh as he feels his way down. Sam is squirming around
again and Dean breaks the kiss to scold him with a look, the boy shrugs and
flushes hard.
“It’s cold,” he mutters and Dean chuckles into his neck, fingers finally
finding and rubbing along his hole. Sam makes an unsure sound and shifts, the
leather creaking under him. Leaning more heavily against the backseat Dean
pin’s Sam’s leg, keeping him spread open. Easily he squeezes out more lube from
the bottle and just lets it spill down, splattering against the erection Sam
now has and he watches in the low light as it runs along the length and down
over his balls. The whimper his baby brother makes is delicious and the bottle
falls into the shadows forgotten as Dean eases his hand back, the cool gel is
pooled all along the cleft of his brother’s ass. Easily he rubs along the
entrance now and presses a finger into him. At once Sam tries to get away but
Dean grabs his naked hip tightly.
“Don’t,” Dean warns once in a hard tone, betraying how little tolerance he has
left, even for his little brother. Sam gets it because he goes absolutely
still, letting Dean press two slick fingers into him.
“Dean!” the whimper is back and Dean feels a grin pull at his mouth, he presses
his fingers deep, feeling Sam try to ease away but held by his hand.
“You gotta relax Sammy.”
He’s unbelievably tight, by far the tightest body Dean’s ever touched and his
cock is throbbing so hard now.
“That it,” he coaxes when Sam visibly forces himself to relax again. His
fingers move with more ease and Dean twists them, stretching and sliding them
deep, getting his brother ready for him. “It’ll get easier with time, your body
will learn,” he assures the trembling boy under him, Sam looks ready to cry
again and Dean likes it, loves the wide-eyed looks he’s getting.
Pushing and curling his fingers ever so slightly Dean waits until Sam hisses,
arching himself in a sudden buck. He looks far more startled then Dean by it
and he grins down wolfishly. Over and over he hits that spot and Sam in a mess
under him, falling apart all over as he sucks in shallow breaths and rocks his
hips.
“Good boy, Sammy, See? Not so bad huh?” Dean teases a bit as he leaned over
Sam, pulling his fingers free and fumbling to get his pants open and his cock
out. The cool air on his bare dick makes him hiss a bit and he bends over Sam
again.
“Gonna be harder to take, you gotta relax for me. Need you to do this for me,”
Dean slips a arm under his brother, the tiny body making his cock jump, because
fuck, he’s wanted this for far too long now. Wrapping his hand around the base
of Sam’s neck he makes his baby brother look up at him.
“Love you baby, take this for me?” The fear is back and tears are threatening
to overflow but Sam nods his head, arm reaching to wrap around his big
brother’s neck.
Dean lines himself up, pressed the blunt head of his over eager dick against
the unyielding entrance. Rubbing his cock in the generous lube coating Sam,
making a mess on his freaking seats, Dean presses against Sam. A whimper sounds
at once and like with his fingers, Sam arches to get away but Dean pins him to
the seat.
“Come one baby, be a good little cock slut,” Dean does his best to sound firm,
his grip on Sam’s neck squeezing as he keeps pressing in. The tight hole tries
to keep him out but Sam is trapped, he can’t get away and the head of his dick
finally forces in. Sam’s mouth parts and he lets out a low broken sound,
fingers gripping desperately at Dean’s neck, he lets him hold on, knows his
brother needs the comfort.
“Doing so good,” he praises and keeps going, sliding up into the glorious heat
of his little brother ass. Dean rains kisses along Sam’s neck and chin, soft
comforts as he forces Sam open wide on his cock.
“Deeeaan,” his name comes out in a long cry, Sam is making whimpering sounds
and Dean knows he’s crying again.
“Relax,” Dean keeps giving him reassurances, soft words as he slides into the
tight, tight body. Sam is trembling under him, his leg shifting against Dean’s
side while his arms clutch Dean to him still.
“You got it,” he finally breaths out, hilted in his brother’s tiny perfect ass.
Pressed up so tightly Dean can feel the size difference, how much bigger he is
then his younger brother. Letting go of his hip, Dean runs his hand along Sam’s
side, feeling smooth skin as he stroking his thigh and then back up along his
arm until his hand is carding through his hair.
“Fuck Sammy, you’re so good,” Easily he’s kissing him again, pressing his
tongue in for a bit before breaking the contact to kiss the tears from his
brother’s face. “Love you so much baby, gonna love you forever.” He can feel,
actually feel Sam beginning to relax around his throbbing dick. Pulling back a
bit he rocks into him. Sam makes another sound in his throat and Dean groans in
reply, moving back and forth in tight strokes. It’s been too much build up and
he knows he won’t last long. Leaning up again he stares down at his brother
spread out for him, Sam is wearing a dazed look and fuck Dean likes it.
“So tight Sammy, so fucking good. My baby bro,” that gets a moan and Sam’s
looking away, red faced and Dean can almost laugh that Sam’s still embarrassed.
“Fucking my little brother Sammy, pounding his tight ass open,” Sam’s shifting
around on the seat now, his erection had wilted but it’s back again.
“Baby, my Sammy,” with both hands around his hips Dean leads Sam’s body,
yanking it down into every thrust. “You’re mine now, right?” the question comes
out in a near growl, Dean can’t take his eyes off his brother, watching him nod
his head, slowly rolling his hips back for Dean.
“Gonna fuck you forever,” Dean manages, slamming more erratically as he feels
the finish line rushing up. Dean can feel himself tensing, the perfect rise
coming up as he lets more of weight fall on the petite body under him. The car
is groaning as it rocks and Sam is making low breathless sounds, hips moving
with real intent now. Sam gasps out, straining for his own release and it
surprises Dean that he can even think enough to wrap a hand around Sam’s dick.
Not even two strokes and Sam and crying out, body lifting from the seat as his
skinny legs wrap around Dean’s waist. The innocent bright-eyed kid looks
fucking debauched, used and loving it. The sight of it and the muscle clenching
on him throw Dean over violently. All he can manage is rough grinding as he
presses every inch of himself against the smaller body. Everything rushes down
into the all consuming pulsing beating through him as he spurts inside Sam,
pumps his kid brother full of his come. Sam’s like a rag doll under him, still
holding on to his neck but just barely, panting for air while Dean finishes.
Just before he slumps against his brother Dean catches himself, struggling to
catch his breath still as he eases out of Sam and twists them around so the
smaller brother is a heap on top of him. There’s not much weight to him so Dean
lets him be. Once his breathing eases and his heart isn’t thumping in his ears
Dean shifts a bit, frowning at the disgusting mess of lube he’s laying in. Sam
curls up more insistently, nuzzling his face against Dena’s shirt. Clearly he’s
done for the night and Dean can’t help but card his fingers through his soft
hair, smirking down at his little brother. Without shifting him too badly, Dean
gets Sam’s other shoe off and eases his jeans back up his legs. It’s too cool a
night to leave him bare. He mutters a sleepy protest but lets Dean clean him up
and redress him.
They need to drive back to the motel soon, but with their dad gone for a few
days still there’s no rush.
Resting his head on his arm he wraps his other one around Sam’s slim shoulder.
He shifts a bit at the touch, moving his head to get more comfortable.
“…Dean?” The usual sleep slur is present, Sam has a habit of talking as he
slowly nods off, usually he never recalls the conversations either.
“Yeah?”
“For good?” The question lets loose a surge of possessive fondness and he
tightens his grip a bit.
“Yeah, Sammy. For good.”
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