
Posted originally on the Archive_of_Our_Own at https://archiveofourown.org/
works/762928.
  Rating:
      Explicit
  Archive Warning:
      Underage
  Category:
      M/M
  Fandom:
      Supernatural
  Relationship:
      Castiel/Sam_Winchester
  Character:
      Dean_Winchester
  Additional Tags:
      Extreme_Underage, Butt_Plugs, Anal_Sex
  Series:
      Part 2 of Lessons_Verse
  Collections:
      Dirty+Bad+Wrong+Hot_Supernatural
  Stats:
      Published: 2013-04-15 Words: 925
****** Another Lesson ******
by lostinmymindforever
Sammy got home from Castiel’s, hole dripping with the man’s come.
And god, as hot as it was, it was also a bit uncomfortable, so Sammy went
upstairs and climbed into the shower, cleaning himself out.
Dean noticed that something was off about Sammy right away.
Sammy never took a shower in the afternoon, always waited until right before he
went to bed, but Dean really didn’t question it.
That is until it happened 4 days in a row.
Dean kept trying to figure out why Sammy had changed his routine, but couldn’t
for the life of him think of a reason.
The next day was Saturday, and Sammy and Dean were hanging out in the park.
Well, more like Sammy hanging out on the swings while Dean flirted with the
girls from his school, but whatever.
Dean noticed a guy talking to Sammy, and instantly he got worried, until he saw
it was only Cas, Sammy’s tutor.
Dean thought that maybe Cas might know what was up with Sammy, as his little
brother wasn’t talking to him about stuff, but he might just be talking to the
older man.
Dean excused himself from the girls and went over by Sammy and Castiel.
Sammy had this little grin on his face, and Dean knew without a doubt that he
had a crush on his tutor.
Dean made a plan to tease Sammy about that later, but he wasn’t about to do it
in front of the object of Sammy’s affections.
Castiel handed Sammy some cash, motioning over at the ice cream cart at the
edge of the park, and the look on Sammy’s face was both beautiful and
heartbreaking at the same time.
After Sammy left to go get his treat Dean brought up the topic of Sammy’s odd
showering behavior to Castiel, who gave him the most confused look.
Dean knew that Cas didn’t know what was going on, so he told him not to mention
it to Sammy.
The rest of the weekend passed swiftly, Dad was actually home, which was a
welcome surprise to both of them.
When Monday rolled around again Sammy went to school then headed over to
Castiel’s once more.
Castiel was waiting for him like usual, but he had this look on his face that
Sammy couldn’t place.
Cas asked Sammy about the showers, about what Dean had spoken to him about in
the park.
Castiel had an idea what was going on, he had picked up a little gift for Sammy
if his suspicions were correct.
When Sammy told him, explained just why he’d been doing what he was doing,
Castiel grinned, which made Sammy less worried.
Castiel winked at him, pulling out his little gift.
Sammy didn’t know what it was, he’d never seen a buttplug before, but when
Castiel explained it’s use, explained just how he wanted him to use it, Sammy
flushed bright red.
Cas gave him his lesson, as usual, then lead him up to his bedroom.
He had Sammy strip, had him got onto the bed on his hands and knees, ass in the
air.
Castiel was so hard, he’d missed fucking Sammy’s tight little ass over the
weekend and was trying to figure out a way to get Sammy over to his place every
single day.
Sammy moaned when Castiel began to lick at his hole, teasing him open.
And fuck if he hadn’t missed this, his fingers hadn’t been the same as
Castiel’s, not big enough.
Castiel worked him open quickly, needing to be inside the boy, and before too
long Castiel was buried balls deep in Sammy’s ass, slamming into the boy again
and again.
Fuck if it wasn’t dirty and wrong and hot beyond belief.
Sammy was so small compared to Cas, so fucking little, and yet he took Cas like
a pro, thrusting back into each and every single one of his thrusts.
Before long Sammy was coming, cock untouched, completely undone by the feel of
Cas’ cock thrusting in and out of his body.
Castiel followed him over the edge quickly, but instead of pulling out like he
usually would, he rolled them both onto their sides, still buried inside the
boy.
God, he was gonna fuck Sammy again, gonna fill him up so good, then seal all
his come deep inside the boy’s body.
He rocked against Sammy, hand caressing the boy back into hardness, kissing his
neck, telling him what a good little boy he was being for him.
Finally Castiel was hard again and he began thrusting in and out of Sammy’s
body, hard and fast, loving the way Sammy begged and moaned in his arms.
When he finally came for the second time he pulled out, grabbing the plug off
the side of the bed and working it into Sammy’s hole.
He ordered Sammy to leave it in place until right before bed, not to shower
until then.
Sammy blushed, but promised Castiel he’d do as instructed.
They got redressed, Castiel giving Sammy a sweet, tender kiss, telling the boy
to bring the toy with him the next day.
Sammy blushed hard, but agreed to the instruction.
He walked home with a smile on his face, could feel Castiel’s come moving
inside of him trapped by the plug.
Castiel couldn’t wait until Sammy came over again, he almost wished he could
find a way to have Sammy come over before school and have him filled with his
come the whole time he was in his classes.
Maybe soon they’d figure that out.
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