
Posted originally on the Archive_of_Our_Own at https://archiveofourown.org/
works/6153871.
  Rating:
      Explicit
  Archive Warning:
      Rape/Non-Con, Underage
  Category:
      M/M
  Fandom:
      Supernatural
  Relationship:
      Castiel/Dean_Winchester, Dean/OCs_-_Relationship, Dean/Alfie/Castiel_
      (Supernatural)
  Character:
      Dean_Winchester, Castiel, Alfie_(Supernatural)
  Additional Tags:
      Alpha/Beta/Omega_Dynamics, Alpha_Dean, Omega_Castiel, Sexual_Abuse,
      Abusive_Relationships, Emotional_Manipulation, Dean_is_basically_an
      asshole, Semi-Public_Sex, Self-Lubrication, Top_Dean, Bottom_Castiel,
      Blow_Jobs, Size_Difference, Anal_Fingering, Dirty_Talk, Anal_Sex, Unsafe
      Sex, Humiliation, humiliating_Cas_is_pretty_much_Dean's_kink, Brother/
      Brother_Incest, Alpha_Alfie, Top_Alfie, Double_Anal_Penetration, First
      Time, Age_Difference, Creampie, Knotting, Double_Knotting, Rough_Sex,
      Crying, Derogatory_Language, Possessive_Behavior
  Collections:
      Shota
  Stats:
      Published: 2016-03-03 Words: 2770
****** you were mine before you were yourself ******
by LilMysterios
Summary
     Where Dean uses omegas and don't remember their names, and then he
     meets Cas.
     Where Cas is young and wants a loving boyfriend... and instead, he
     gets Dean.
Notes
     This is for snowin_you, who's been here from the very start,
     supporting and encouraging me, and who was asking about some
     lil!Cas... snowin_you, this isn't shota!Cas, but I hope it's still
     morally wrong enough to please you. I hope you'll like it. ;)
     As usual, please read the tags and warnings, they're here for a
     reason... and if you feel some are missing, just tell me and I'll add
     them!
     But if you're okay with them and are still interested in reading my
     filthy little fic, go ahead and enjoy!
See the end of the work for more notes
Dean's always had a thing for innocence. Or more precisely, for defiling
innocence. 
It usually goes down pretty quickly. As soon as they're settled into a new
town, Dean begins his search at school... it isn't hard, considering he is a
tall, handsome alpha who isn't afraid to use his charms to get what he wants,
and after he's found himself the prettiest, most innocent omega he can, he
begins his courting.
Well, at least that's what they think it is... omegas are never very clever,
Dean figured out pretty quickly. Real needy, you know? Some longing looks, a
few tender caresses when they don't expect it, heated words of love and
forbidden passion, and in a matter of days they all cave, giving it up to Dean
in hallways or bathrooms or janitor's closets, spreading their thighs for him
to fit in between and then crying so prettily when he pushes his big, fat knot
into their creamy little pussies... 
He uses them for all their worth, his little whores, breeding them good and
proper every chance he gets, filling all of their hungry holes with hot, thick
come... and when they ask about love and forever he soothes their worries with
soft words and sweet kisses, promising an official mating bite soon, real
soon... but then one day John is finally done with his job and they have to
skip town, and of course Dean follows without a goodbye, leaving behind his
little omega-of-the-month, not only heart-broken and abused but also more than
likely pregnant.
Honestly, he's lost count of the number of omegas he's had like that, doesn't
even remember half their names... which explains why he's not expecting
anything different when he meets Cas.
Cas looks like your typical omega boy, with his sweet, soft little body hiding
beneath too-big clothes, his plush, untouched mouth and his wide, bright blue
eyes, and Dean just knows he has to have him. Knows he has to own him and touch
him and ruin him, and it doesn't matter if he has to promise the world or the
moon or love and marriage and mating... Dean will have the Novak boy on his
knees, with a cock down that white little throat and sticky strings of come on
those chubby cheeks, or his name isn't Dean Winchester.
What Dean doesn't expect, is the innocent way Cas is eager for him.
Because the thing with Cas is that he's not a slut. He's not one of those
pretty, controlled omegas who turn out to be overly sexual little things as
soon as they get a cock in them, becoming shameless little bundles of hormones
who'll open their legs for anyone with a knot once their virginity's not in the
way anymore...
No, Cas isn't like that. Cas isn't sensual or shameless, he's fucking awkward
and nerdy, clumsy and hesitant, and he blushes red and gorgeous when he's
embarrassed, blotches of scarlet staining his smooth baby cheeks...
The only thing that makes Cas a slut, the one thing that makes him better than
anyone Dean's ever had, is how he can't say no to Dean.
He'll try to at first, because he has his pride; he'll protest and beg and
plead, but every sound out of that sinful mouth will be weak and too soft to
Dean's ears, and Dean will take him anyway, listening to those complaints
turning to moans as he fits his cock between pale cheeks and plows Cas anywhere
and any way he can, greedy for the way Cas will just give up on fighting when
he's fucked hard enough.
Dean lives for that moment where Cas stops fighting, where he just gives up,
realizes this is the natural order of things, him on his knees with Dean's
alpha cock destroying his ass.
For example, Cas doesn't like to be fucked in public, and so Dean works up to
it, slow and subtle like he does best… Cas really does bring out the patient
planner in him. At first it's only in private, in Cas' bed or on Dean's bare
mattress, Cas moaning unashamed, twisting in the sheets…
Then it's at school, in the bathroom or in empty classrooms, but always with
the door closed, with the locks checked… Cas protests at first, afraid someone
will see and expel them or something, but Dean just smiles and says he wants
him so much… and Cas sighs and bites his lip, all pretty and delicate when Dean
bends him over and opens him up with thick fingers.
And then, when Cas is ready, when he will do anything Dean tells him to, Dean
shows him how much of a slut he is and takes him anywhere; ignoring the gasps
and sobs as Dean pushes Cas' classy, tailored pants down and knots him raw
behind the bleachers, in the locker room, in the library... oh, the look on
Cas' face when Dean had him come all over the classics section of the library,
red-faced and panting and powerless as he trembled in Dean's strong grip,
clenched on his knot! It was glorious.
But that's not all Dean does. No, there are a lot of things in Cas that he
needs to break.
Cas likes it slow, he likes it tender and loving, and so at first that's what
Dean gives him: slow rolls of the hips that make Cas see stars when Dean
massages his prostate, sweet, soft kisses peppered all over his sweaty face, to
get him hooked, to make him crave... that way, when Dean stops bothering with
kisses and caresses and stretching, he can say it's because he can't wait, he
wants Cas too damn much... and by that point Cas is so far gone, he doesn't bat
an eyelash, simply spreads his legs wider, moaning softly as Dean fucks him
harder, rougher, pinning him down and bruising him from the inside, wrecking
that soft little cunt with so much come Cas is leaking with it. 
Cas also doesn't like to be called names, hates it even, so Dean is careful not
to do it too soon... he'll wait until he's knot-deep inside the boy's clutching
heat, pulsing hot and sticky in that warm little hole, and he'll whisper it in
Cas' ear, how he's such a beautiful slut for Dean, such a perfect little omega
bitch, and Cas will blush hard and ashamed but Dean will grind his hips, fat
cock pressing hard against the boy's plump little prostate, and Cas' protest
will be lost in a shocked gasp.
After a while Cas gets used to all of it, gets used to being treated like the
omega he is, and he doesn't say anything anymore when Dean calls him a baby
slut, a knot-whore, a pretty little cumbucket... he'll just blush and close his
eyes and bite his lip and Dean will know he learned his lesson.
After all, omegas need to know their place in the world, right? 
 
***
 
They're in Cas' bedroom, and it's late already, the darkness of the night
enveloping them, making them feel all safe and secret. Even though Cas' parents
are down, even though Cas' brother is sleeping in the same room. 
They feel safe.
"Can't believe you're letting me do that, Cas," Dean is saying. "Can't believe
you're that much of a slut."
Cas blushes but doesn't answer, simply moans as he arches his back, pushing his
ass against his boyfriend's fingers, taking him deeper, his pale thighs
quivering where they bracket Dean's.
"But you are, aren't you, Cas," Dean chuckles, low and triumphant. "You are a
slut, just a pretty little omega whore... a ripe, wet hole ready to be bred..."
Dean tugs Cas to him and slides his cock inside him in one go, drinking in the
way the boy's eyes widen and glaze over.
"Yeah that's right, you want to be bred so bad... because you're just an omega,
just a pretty little fuckbaby."
Cas' eyes cross, his mouth open and obscene and he looks gorgeous, he looks
wrecked, he looks like Dean's.
"Yeah you love it, Cas, you pretty little whore," Dean coos, and his cock finds
Cas' prostate, making him gasp. "You love getting fucked while your brother is
asleep in the room."
Cas blushes hard, no doubt feeling the burn of humiliation, and Dean chuckles,
because it is about to get ten times better.
"Huh you like that, Cas? Taking my cock in your childhood bed, while your
parents are asleep in the next room? While your brother sleeps?"
Cas sobs, eyes hazy with pleasure.
"I bet you wouldn't even care if Alfie came up right now and fucked you," says
Dean.
Cas' hole clenches around him, and Dean smiles.
"Huh, what do you know? Little Cas, getting turned on when I talk about his
brother fucking him? Is that what you want Cas? Because you're such a huge slut
you'd let anyone fuck you?"
Cas blinks, slow and painful, and Dean can see how much he hates it, how much
he hates being called a whore and a slut, but he won't do anything... he's like
an addict now, addicted to Dean's knot and ready to do anything, ready to
endure any kind of abuse, if it means he'll get to be bred and kissed and owned
by Dean.
"Say it, Cas," commands Dean. "Say you're a whore."
"I'm not--please, don't say--Dean," begs Cas, and Dean smiles, because Cas
won't be so high and mighty for long.
Dean pushes his fingers alongside his cock, feeling the stretch of Cas' cunt,
the tender throbbing of the rim where it is pulled tight. 
"Okay," he says. "Okay."
That's when he looks behind Cas, because here is Alfie, Cas' younger brother,
lanky and tall and not at all asleep in his bed but naked and ready with his
fat little dick in his hand, and Dean nods at him, licking his lips.
"Just you wait."
He looks pointedly at Alfie, who climbs gingerly on the bed, eager teenage face
appearing right above Cas' shoulder, and Dean can see Cas' eyes widen when he
feels little hands settle on either side of his hips.
"What's--Dean, what's going on--"
"Don't worry, Cas," Dean cuts in, "you'll do great. Babywhores like you usually
have no trouble taking two cocks, and your brother here isn't even that big."
An exquisite feeling of satisfaction blooms in Dean's chest when he sees Cas'
reaction, the way his face drains of all color as he realizes what's gonna
happen.
"Dean, I don't think--please, you can't--"
He's cut off by a shocked hiccup as Alfie forces slim fingers into his hole,
and Dean can feel them wriggling around, snug against his cock.
"Come on, Cas... your little brother needs to pop his first knot somewhere,
right?" he says, voice smooth, coaxing. "Don't know where I would be if my dad
hadn't given me my first hole..."
"Please, no, Dean--I don't want--" Cas is saying, pleading, weak arms trying to
push Alfie away while he struggles to stay impaled deep on Dean's cock. "You
can't just--"
But the protest is as it always is, weak and soft, too soft, and Dean only
grins as he gathers Cas closer to him, pressing his flat chest to his own and
trapping his thin arms together between them, effectively immobilizing Cas.
"Yes I can, Cas... that's why you're here, remember? To be fucked."
And that's when Alfie finally joins in, pressing his little cock to Cas'
entrance, his round, innocent face scrunching up with raw, pure pleasure... the
omega lets out a pained mewl as his hole is invaded once more.
Dean can feel the angry buck of Cas' body as Alfie sinks all the way in, and
the boy's slim little dick is a perfect friction against Dean's own larger
cock... he chuckles fondly, reminiscing his own first time when Alfie's hips
start jerking forward, pounding his big brother's ass without mercy as instinct
trumps inexperience and tells him to fuck deep into that ripe cunt...
Cas gasps and sobs through it, his little brother thrusting with wild abandon
inside him, blinking hard at the obscene, squelching sound Alfie's cock makes
when it forces its way through his slick, and Dean drinks in the sight of him,
the glaze in his bright eyes, huge pupils eating up the brilliant blue of his
irises, the betrayed frown his forehead shows, the humiliated burn on his
cheeks.
"How does that feel, Cas?" Dean asks, and he's drunk on it, the power he has
over that beautiful, beautiful omega. "How does it feel to be your brother's
first?"
Cas only whimpers and Dean nuzzles against his cheek, noses at the dip behind
his ear, inhaling the sweet scent of arousal and distress.
"How does it feel to be a hole for your baby brother's come? Does it feel
good?" he whispers. "Does it feel good to be your family's new whore?"
He bites at Cas' lobe, nibbling at the delicate bit of flesh. 
"Maybe your daddy will be next..." he says. "Maybe he'll spread your legs too,
force his big fat cock inside your greedy little hole... would you like that,
Cas? Would you like to be your daddy's little breeding bitch?"
It won't be long until Alfie comes; he's already going wild behind Cas, his
sharp hipbones slapping his brother's ass with every hard thrust of his hips,
and tears are rolling down Cas' cheeks.
"Say it now, Cas," Dean whispers into Cas' ear, cheek pressed to the sweat-
matted hair. "Just say it."
Alfie is panting raggedly against the omega's neck and Dean can feel it in Cas'
body the moment the younger boy comes, blue eyes going wide and wiry body going
taut and still as he spills warm wetness all over his big brother's fertile
insides, bony hips stuttering against Cas' ass, sharp fingers clawing at the
slim hipbones.
Cas moans, raw and broken and he is beautiful, he is the most beautiful thing
Dean's ever seen, tense and humiliated as his weak, trapped body is forced to
remain there, offered and open, welcoming his sibling's potent seed.
Dean can feel Alfie's knot growing against his cock and he watches hungrily as
Cas' eyes go glassy and unfocused, his body now defiled beyond all measures...
and Alfie is still coming, coating Cas' insides with sticky come, and Dean
breathes in deep, takes in greedy gulps of shame and pleasure and omega.
"Just say it, Cas..." he whispers. "What are you now?"
Dean is devouring the sight, chest going warm with sick pride as he watches Cas
break, the moment the omega's entire frame goes limp and defeated.
"I--a whore, Dean, I--I'm a whore, I'm your whore, please, fill me up, breed
me, Dean..."
Dean smiles, sharp and triumphant.
"That's what I'm talking about," he says, and he can finally let loose.
He's won.
He starts to fuck Cas in earnest, thrusting up into that tight heat with hard,
punishing grinds of the hips, and it feels so good, it feels so right, to have
Cas like this, all limp and trembling on his cock, Alfie's knot dragging
against it every time he pushes deep inside Cas...
"Don't ever forget it, Cas," he grunts against the omega's ear. "Don't ever
forget that your only use in this world is to be bred, that you're just a hole
for anyone to take, a warm pussy for public use. And what does that mean, Cas?"
Cas is too far gone to answer, his whole body reduced to a slick opening for
Dean to pump his dick into.
"That means that until further notice, you're mine. I found you and you're
mine, mine to fuck and fill and breed until you're a sloppy mess, and I'll
never let you go, you hear me?"
Cas doesn't even have the strength to cry anymore. He's just sprawled on Dean's
chest, limp and easy, nodding dumbly along whatever Dean says as he's knotted
and bred within an inch of his life.
"I'll never let you go," Dean promises against Cas' neck, and with that he's
coming, hard and fast, emptying his load deep inside that frail body.
He can feel his knot growing as well, gorging with blood and pushing against
the tight walls of Cas' body, stretching him wider than ever before... Cas
whines and cries and Dean shuts him up with a kiss, swallowing the sounds with
his mouth. 
He can't wait to introduce Cas to his father... they're gonna have so much fun.
End Notes
     As always, I might write some more in this verse... so if you're
     interested in reading another chapter, just subscribe to the fic.
     This was unbeta'd, so if you saw any mistake just tell me and I'll
     fix it!
     Also, your kudos and comments give me life, so don't be shy. ^^
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