
Posted originally on the Archive_of_Our_Own at https://archiveofourown.org/
works/771141.
  Rating:
      Explicit
  Archive Warning:
      Underage
  Category:
      M/M
  Fandom:
      Supernatural
  Relationship:
      Castiel/Sam_Winchester
  Additional Tags:
      Fallen_Castiel, Godstiel:_Cas_as_God, Leviathan_Castiel, Demon_Castiel,
      Werewolf_Castiel, Mating, Sam_'Boy_King_of_Hell'_Winchester, Stanford
      Era, First_Time, Dominant/Top_Castiel, Bottom_Sam, Blood_Drinking,
      Dubious_Consent, Angel_Sam_Winchester, Broken_Sam_Winchester
  Stats:
      Published: 2013-04-23 Words: 1696
****** A Series Of Sastiel Ficlets ******
by lostinmymindforever
Summary
     Sam will always belong to Castiel, no matter who or what they are
Fallen!Castiel
---
Castiel had been watching Sam for years now, ever since the night Azazel fed
him his blood and murdered his mother. He watched as Sam grew, watched the seed
of darkness flourish and grow, knowing that it would take only a little push to
bring out what Sam was meant to be. Castiel followed Sam closely all this time,
waiting for the proper moment to strike, for the proper moment to take what is
his.
And now the time has finally come, Sam is alone, away from his family for the
first time in his life. Away from John and his obsessive hunt. Away from Dean
and his damned-able twisted honor. Alone. Just how Castiel wants him.
It doesn’t take much to get in with Sam, a few simple words. The boy, no man
really, he is 18 after all, doesn’t think anything of this strange man talking
to him. He’s surrounded by strangers here. And all too soon Castiel has Sam
following him back to his apartment, has Sam nervously sitting on the foot of
his bed as he strips, has Sam flat on his back, begging and pleading and
moaning Castiel’s name.
It isn’t much longer after that before Castiel is teaching Sam what he’ll need
to know to fulfill his destiny. And Castiel can’t wait, he knows he’ll sit at
Sam’s side when the world burns, when Sam takes his place as the Boy King of
Hell. Sam was born for this, and Castiel... Castiel will mold him into what he
needs to be.
---
Godstiel
---
It didn’t take much, a simple gesture really, to send himself back in time, to
a time before the Winchesters knew him. He found Sam alone, sitting at a bus
station, waiting, tears running down his face. Sam was leaving for college,
alone for the first time in his life and it drew him like a beacon. He
approached Sam, his power evident, and in a motion had the two of them
somewhere more private.
He shoved Sam against the wall, kissing him hard, his hands moving along Sam’s
body, so similar to the one he knew but lacking the muscles Sam had grown into.
He shoved Sam to his knees, ordering him to worship him. He could tell that Sam
had never done this, and that made it even sweeter. His fingers carded through
Sam’s short hair, so much shorter than what he is used to.
He whispers sweet nothings to Sam, telling him how good he is being before
yanking him to his feet and tossing him across the room onto the bed. He
snapped his fingers, stripping both of them as he prowled towards Sam, a grin
on his face. He kissed Sam hard, fingers moving to stretch his human open. Sam
was begging and pleading, for him to stop or for him to continue, he wasn’t
quite sure, and it didn’t matter, he would have Sam.
He fucked Sam hard, leaving hand shaped bruises on his flesh, hickeys along his
neck. When he was done he stripped all memory of his face from Sam’s mind,
redressing him and returning him to where he had taken him from. Sam was his
and would always be his. A willing sacrifice to his god.
---
Levia!Cas
---
One thing we love the most about this body we are in is the ability to stop and
twist time. It lets us have so much fun. Like with the big one. He is so broken
and that makes him beautiful to us. We found him hiding, away from the others,
the damage HE did to that one so obvious. He didn’t even realize we were real,
thought we were just a delusion.
He didn’t fight when we shoved him against the wall, our hands trailing down
his body, whispering filth into his ears. He shuddered a bit as we shoved down
his pants, resting his head against the wall, whispering this body’s name
brokenly. Even though HE broke the big one he still loved him and we used that
to our advantage.
We took him hard and fast, biting and bruising and claiming his body in ways HE
should have done, and the big one worshiped us for this, thinking we were
Castiel. And we left him that illusion, telling him that he belonged to us,
telling him how long we had waited for this moment. And all the time he moaned
and begged, wanting more of our touches.
We could have ended him easily, but he was too much fun, too perfect a toy to
discard. He took it so well, our Sam, our broken lost one, and each thrust into
his willing body made him more ours. When we finished we left him as he was and
returned to the fools, never letting them know what had happened. But Sam, Sam
knew the truth, we could see it in his eyes when he saw us, we could tell he
knew just who and what had used him. It was perfection.
---
Demon!Cas
---
The angel that stands before me calls to me in a way no angel should. Pure and
innocent and at the same time begging for me to corrupt him. His vessel is
young, 15-16 if I had to guess, but I know this is no boy standing before me.
His grace is practically blinding, and yet I still approach. Had he been given
the chance, this vessel would have grown large, bigger than me, but as it
stands I am the larger one here.
I smirk at the angel, my black eyes shining with a dark glee as I shove him
against the wall. Surprisingly he hasn’t smote me, he allows my hands to travel
along his body, touching him in ways no angel should be touched. My hands grasp
his face, pulling him to me and our lips touch as I breathe out his name,
“Sam.”
He shudders, wings shaking behind him as I begin to undress us. He knows what
is to come, what I plan to do to him, and yet he doesn’t stop me, moaning my
name as I touch his pure, virginal body. He wraps his arms around my neck, legs
around my waist, and I enter him in one hard thrust, claiming him as mine. He
whimpers and writhes in my grasp, moaning my name again and again, “Castiel”,
and I thrust viciously.
He’s broken and bloody when I walk away, a smile on my face. And I know I will
return to him again, claim him over and over again. My Sam is tainted now,
touched by Hell in a way that has corrupted him, forever mine.
---
Werewolf!Cas
---
The human runs in terror through the woods, trying to outrun the beast that
chases him, but knows deep down that he will never escape. Sam is terrified,
running blindly, trying to get away, but Castiel is faster, stronger, he knows
these woods in and out in a way the human never will. He corners Sam against a
rock, the human out of breath, Castiel’s jaws snapping at the human menacingly.
Sam shudders as the wolf comes close, knowing that he’s about to be killed.
He doesn’t expect the wolf to rip at his clothes, shredding the fabric until he
is naked in the moonlight. Castiel grins at him, as much as a wolf can grin
that his, howling at the night sky before allowing his body to shift back to
his human form. When that is finished he grabs the human, kissing him harshly
before licking down his neck, biting hard, marking and claiming, turning his
human, his mate.
He shoves Sam to the ground, and drops to his knees, licking his mate open. He
growls when Sam tries to get away, fingers tightening on the man’s hips. Sam
stops fighting him, and slowly relaxes into Castiel’s ministrations. By the
time Sam is begging Castiel to take him they both are ready, Castiel dripping,
knot ready to form. He thrusts inside his mate, biting down on his claim mark,
fucking him hard and fast until his knot fills out and ties them together.
Castiel laughs when Sam tries to pull away, not knowing they’ll be stuck
together for a while now. “So tell me your name, little mate?” Castiel says in
his dark voice.
“Sam, Sam Winchester.”
“Mm, you can call me Castiel, or Master.”
Sam shudders at those words, making Castiel laugh. It’s going to be a long
night.
---
Castiel
---
Sam finds himself handcuffed to the bed, Castiel standing over him. The angel
is grinning, something Sam can’t remember ever seeing before, at least not that
sort of grin. He yanks at the bonds, only to see Castiel shake his head. “Sam,
I know what you are doing with her, with that demon and I cannot allow it to
continue.”
Sam realizes that both he and Castiel are naked and he tries not to get aroused
at the sight of the angel’s naked form, but he finds himself growing hard. He
watches as Castiel picks a knife up off the table, running it along his arm
before bringing it to Sam’s lips. The blood fills his mouth, and Sam can feel
it coursing through him, more powerful than demon’s blood, rich and filled with
this power he can’t even begin to describe.
While Castiel continues to feed Sam his blood he slowly fingers Sam open,
stretching him wide, and Sam, much to his embarrassment loves it. He thrusts
back onto Castiel’s fingers, wanting, needing more. When Castiel takes his arm
away Sam moans with loss, only to have Castiel kiss him, softly, tenderly,
before entering his body.
Castiel is in control here, Sam knows that. He owns Sam now, mind, body, soul.
Sam will do anything Castiel says, anything he asks, and Castiel knows that. He
fucks Sam hard, flooding his body with his seed, marking Sam as his for all
time. Castiel leaves him tied up, planning on returning later to give him more.
But first, first he has a demon to go and kill. Once Ruby is gone Sam will
truly belong to him.
Please drop_by_the_archive_and_comment to let the author know if you enjoyed
their work!
