Posted originally on the Archive_of_Our_Own at https://archiveofourown.org/
works/2543918.
  Rating:
      Explicit
  Archive Warning:
      Underage
  Category:
      M/M
  Fandom:
      Teen_Wolf_(TV)
  Relationship:
      Derek_Hale/Stiles_Stilinski, sterek_-_Relationship
  Character:
      Derek_Hale, Stiles_Stilinski, Scott_McCall's_Pack
  Additional Tags:
      I_guess_technically_underage_depending_on_how_old_Stiles_is_in_season_4,
      idk_-_Freeform
  Stats:
      Published: 2014-10-31 Words: 1497
****** A Very Sterek Halloween ******
by FandumbGirl
Summary
     A quick ficlet for Halloween. Derek has been convinced to host a
     Halloween party for the pack at his loft. So how does he end up in
     bed with Stiles?
Derek didn't know how he let Scott talk him into got to his stupid Halloween
party, let alone convinced him to let the whole pack have the party at his
loft. But here he was, Halloween night, apartment decorated, snacks laid out
and waiting for everyone else to get there.
Scott and Kira got there earlier in the afternoon to set everything up,
promising that Derek didn't have to do any of the decorating or clean up since
he was letting them party there. The two left about an hour ago to get their
own costumes on and all Derek had was to sit contemplating how his life ended
up at this point.
Somehow half an hour later Derek found himself smushed in his loft his dozens
of teenagers. Scott led him to believe it was going to be just the pack there,
but it seemed more like half of their grade level was at this party. He tried
to stay in a dark corner as everyone around him steadily got drunker and
drunker.
How did he get himself roped into this?
Derek looked around to see if the members of the pack were even there. He saw
Kira and Scott dancing together. He had to admit they were cute together. Kira
wore a little "sexy nurse" outfit and Scott matched her as a doctor. Searching
around more he saw Lydia surrounded by a group of boys appreciating the kiss-o-
gram policegirl outfit she had on.
It took a few more minutes to find the last two members of the pack. At first
he was surprised to see Malia in a cat outfit dancing with a guy not Stiles.
Then vague memories of hearing Scott and Stiles talk about Malia and him
breaking up and how weird it was to be friends with an ex surfaced in his mind.
For the nth time that night Derek had to question what was happening to his
life that he knew these things.
He pushed off the wall and meandered to the table most of the snacks were piled
on and the keg next to it to get himself a drink. He almost spit out his first
sip in laughter when he finally saw Stiles. The boy was flailing on the dance
floor and grinding against a guy Derek remembered being introduced to as Danny.
Now he was used to Stiles Flailing with nearly everything the boy did, so it
was not his awful dance skills that amused Derek. It was the costume.
Only Stiles would come to a party thrown by a werewolf dressed as a wolf.
When the music changed Danny bent down to whisper something in Stiles' ear.
Whatever it was made the idiot grin and start towards the snack table. Derek
couldn't keep his eyes away. There was just something about Stiles that made
Derek always want to keep an eye on him. He didn't know if it was the good view
or if he was just afraid the boy would flail and hurt someone.
Maybe it was strange combination of the two.
Stiles reached the table and grabbed a handful of Oreo before stuffing three in
his mouth. It took a few tries at swallowing and a couple swigs of beer before
Stiles' mouth was clear enough for conversation.
Stiles looked up at Derek. "Woo dancing really takes a lot out of a guy." He
smirked and added, "You should try it some time."
"I think your brand of dancing is more than enough for the two of us. What's
with you and that Danny guy anyway? I thought you were into girls."
Derek almost growled when Stiles rolled his eyes. "Dude why pick one when I can
love 'em both. I'm bi and lovin' it."
All Derek could say was "Oh."
Stiles reached out fingering soft fabric of Derek’s hoodie. "A red hoodie." He
glanced up, eyes shining with mischief. "Are you supposed to be the Little Red
Riding Hood to my Big Bad Wolf? Or maybe it should be Big Red Hoodie."
If Derek didn't know any better, he would think Stiles was flirting with him.
No he was probably
just too drunk. He couldn’t smell much alcohol on Stiles, but better safe than
sorry. As the sole adult at the party it was probably his responsibility to
make sure people stayed safe. At least the people he cared about.
He grabbed Stiles' arm and dragged him out of the party into the blissful quiet
of Derek's room.
"You're drunk. You should sleep it off."
"Hell no. It's Halloween and at most I'm tipsy, not drunk. I'm going back to
the party."
Stiles made to leave the room but Derek grabbed his wrist before he could make
it out. Stiles tugged to free his hand, but Derek was not letting go. In
return, Derek yanked and held onto both of Stiles wrists.
"Look," he sighed. "I'm just looking out for you. I don't want you to go out
there and do anything stupid."
"Stupid? Stupid?" Stiles' voice rose with each word out of frustration. "I'll
show you something stupid." He pulled harder to get his hands free, but Derek
just shook him by the wrists trying to calm the drunken teen.
A look Derek couldn't decipher crossed Stiles' face before the boy lurched up
and kissed him.
Derek stood in shock for a moment, before his hormones took over and he sank
into the kiss. Stiles nipped at Derek’s lower lip, driving him to slow torment.
Derek was never one easily swayed by a kiss, but the mixture of the taste of
chocolate and a sweetness that had to be all Stiles sent the blood rushing to
his lower half.
Derek stood in shock for a moment, before his hormones took over and he sank
into the kiss. Stiles nipped at Derek’s lower lip, driving him to slow torment.
Derek was never one easily swayed by a kiss, but the mixture of the taste of
chocolate and a sweetness that had to be all Stiles sent the blood rushing to
his lower half.
Feeling a responding hardness from Stiles brought a sense of reality back to
Derek. He pulled away.
"Stiles, your drunk. You have no idea what you're doing right now."
"I have no idea why you keep insisting I'm drunk. I've had like two beers,
dude. Not enough to get me drunk."
Assuming the discussion was over, Stiles pulled Derek back into the kiss. This
time Derek didn't fight.
He finally let go of Stiles' wrists and put them on Stiles' hip, drawing their
groins closer together. He had been lusting after Stiles for months, and now he
finally had a chance to delve into his desires.
He backed the two of them up until Stiles' legs hit the bed and they tumbled
down on it. Stiles took no time in taking off Derek's hoodie and shirt.
The feel of Stiles running his hands over Derek's chest drove all patience out
of Derek. There would be time for slow love making later. Tonight was a night
to fuck.
Stiles must have read his thoughts, because soon enough he was rutting against
Derek trying for as much friction through their jeans and underwear as
possible.
They wiggled out of their pants as best they could while not breaking their
kiss. Soon enough every naked inch of their bodies were against each other.
Stiles broke the kiss, panting. "Lube?" When Derek nodded to the nightstand
next to his bed before starting to bite and lick Stiles' neck. Stiles stretched
to get into the drawer and pull out the bottle.
He squirted some on his hand and reached between them and grasped both of their
members in his hand.
Derek gasped at the sudden tight heat surrounding him. Shit, at this rate he
probably wasn't lasting much longer.
Stiles pumped his hand faster. Derek licked at the sweat starting to run down
Stiles' chest. The heat between intensified. If Derek's eyes were open, or
Stiles looking down, instead of his neck arched back for easier access for
Derek, one of them may have seen Derek's eyes glow blue.
A few more pulls and Stiles was cumming all over his hands and chest. The
pulsing of Stiles' cock against his sent Derek over the edge and his cum mixing
with Stiles' on the younger man's chest.
Derek flopped over with the little strength he had left so he wouldn't crush
the boy with his weight. "That was..."
Stiles didn't miss a beat. "That was the best Halloween treat ever. Even better
than when Mrs. Fulman passes out full size Snickers."
After catching their breath and getting dressed, the two made their way back to
the party to the commentary of Stiles quips about how next time Derek could be
the Big Bad Wolf.
Derek let Stiles think he didn't notice, but Derek just smiled at the sign
Stiles stuck on his back. "Stiles' Red Riding Hoodie"
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