Posted originally on the Archive_of_Our_Own at https://archiveofourown.org/
works/775672.
  Rating:
      Explicit
  Archive Warning:
      Underage
  Category:
      M/M
  Fandom:
      Supernatural
  Relationship:
      Castiel/Dean_Winchester
  Character:
      Sam_Winchester, Castiel, Dean_Winchester
  Additional Tags:
      Rimming, Shota, Underage_Sex
  Stats:
      Published: 2013-04-27 Words: 953
****** Not His First ******
by AlphaMishka1508
Summary
     Sam knew what was going on between his brother and their baby sitter
     named Castiel. He had seen it before, but it's the first time he felt
     like this.
Notes
     Warning!! Castiel is about 23 in this fic and Dean is 13. It is
     mentioned so you wouldn't be able to think otherwise!
This wasn't the first time little Sammy woke up from his nap early because he
heard strange noises coming from the living room. When he first heard them he
thought Dean was hurt and had gotten out of bed to check on him only to stop in
the door way to his room because he knew that what he had seen when he peaked
around the corner was something a 9 year old was not supposed to see. It wasn't
the first time catching Dean on his knees for their babysitter, seeing his
mouth opening wide around the man's cock head as it disappeared into his mouth.
It made Sam feel weird, unsure if he should even have seen this before he
turned back into his room and slipped back under the covers. It was something
Sam wouldn't forget any time soon.
This time Sam had been awake and watching a movie when he heard those sounds
again. Could hear quiet little breaths his brother was making from the living
room and he sat up in bed as quietly as he could even with his bed squeaking in
protest. He crawled out from under his blankets, climbed out of bed, and
crawled across the floor towards the door that was just cracked enough for him
to be able to see into the living room. If he turned at just the right angle he
had a clear view of the couch and what he seen made his eyes widen. This time
it wasn't Dean's hands touching Castiel's groin, or his mouth licking at the
thick cock the man had, but it was equally as bad.
His brother was laid out on the coffee table, bent in an almost 90 degree angle
and moaning a bit louder then he normally would. Dean's arms were swung up over
his head and gripping at the table hard, knuckles white with the force as
Castiel held his hips up in the air. He wasn't wearing any pants or underwear
and the baby sitter had his face in Dean's ass. “Cas!” Dean moans softly and
Castiel's free hand wraps around Dean's legs that were draped over his
shoulders to grab at his brother prick, bobbing stiffly between his legs. This
causes him to whimper louder and Sam's swallows, feeling much warmer then he
was before he got out of bed.
Sam watches Castiel's fingers tug gently at Dean's dick, watches his thumb
stroke the head and notices it comes back a little wet. He watches how the
older man pulls back a little and he's licking noisily across Dean's crack
before turning a bit to suck gently at one of the cheeks. “No, no...Cas, wait-
so close!” his brother whispers, moaning again and Castiel stops to look down
at Dean's flushed face in question. “Don't you want me to finish you?” Castiel
asks and his voice is so deep it makes Sam shiver and panic because he isn't
sure if Cas can see him watching from where they are. He shifts back, but
doesn't get too far when he feels his groin drag across the carpet and his jaws
part in a soundless cry.
Sam was flushing brightly and he covered his mouth with his right hand while he
buried his face in his other arm. He knew he was hard inside his underwear,
could feel it pushing against the floor and couldn't help it when he raised his
hips to grind back down against the soft carpet. Sam pressed his hand against
his mouth harder when he felt his cock shift in his pants. He could hear Dean
moaning in the living room again, heard Castiel whispering softly to him and he
wasn't really paying to much attention to what he was really saying. Sam humped
the floor again and again, whimpered quietly each time his little dick dragged
along the floor and sent sparks up his body.
Just as Sam looked back up and out of the door again he could hear Dean
groaning, watched his brother's back arch off the table, and seen his dick
dripping with a liquid he knew couldn't be pee. It wasn't the right color and
didn't pour out like piss does, but it didn't matter because the moment he
thrust against the carpet this last time he froze. His mouth hung open and his
hips pressed against the ground in one last twitch as his body overcame with
small quivers like he was cold, but Sam was quite the opposite. He can feel his
cock twitching in his pants and when he reaches down to touch it he groans
softly and pulls his hand away from his sensitive shaft. When he looked back up
at his brother he seen the positions were changed and Dean was on his knees
again, face buried in Castiel's groin.
The man groaned softly and ran a large hand through Dean's hair, watches him
licking at his dick messily. Sam couldn't help it and continue to watch, but
not for very long. When he looks back up at Cas' face the older man isn't
watching Dean, but him. It makes Sam's eyes widen in fear as the man smiles at
him, gives him a slow wave with his free hand as he bites at his bottom lip. He
can feel his heart beating quickly in his chest and watches Castiel run his
fingers over his brother's hair, watches his back arching slightly and his
mouth drop open and for the first time he heard Castiel moaning. Sam may have
seen all this before, but he had never once heard a peep from Castiel and his
eyes were still locked on Cas' as the man comes.
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