
Posted originally on the Archive_of_Our_Own at https://archiveofourown.org/
works/9322088.
  Rating:
      Explicit
  Archive Warning:
      Underage
  Category:
      M/M
  Fandom:
      Teen_Wolf_(TV)
  Relationship:
      Chris_Argent/Derek_Hale/Stiles_Stilinski
  Character:
      Chris_Argent, Stiles_Stilinski, Derek_Hale
  Additional Tags:
      Werewolf_Mates, Underage_Stiles_Stilinski, Were-fox_Stiles, Alpha_Chris
      Argent, Beta_Derek_Hale, Mating_Cycles/In_Heat, Omega_Stiles_Stilinski,
      First_Time, Power_Bottom_Stiles_Stilinski, Swearing
  Series:
      Part 6 of Chasing_After_You
  Stats:
      Published: 2017-01-14 Words: 2922
****** Unexpected Turn of Events ******
by FlyAwayMeow_(rjaejoo)
Summary
     Stiles first heat has arrived, and yeah, that, that was not what
     Chris was expecting at all.
Notes
See the end of the work for notes
===============================================================================
 
 
After the fourth time Stiles wakes up in Chris and Derek’s bed with no memory
of how he got there, he decides fuck it and gives up. Over the next several
days, bits and pieces of his things start to make their way into the master
suite. Chris and Derek don’t say anything after finding their drawers
rearranged and Stiles’ clothes mixed in with theirs. Chris just quietly laughs
when Derek gets stuck in a shirt he attempts to pull on before realizing it is
a size too small and no his shoulders are not going to fit no matter how hard
he tries.
More times than not, Chris has woken to find the teen sprawled across his
chest. His late night wanderings are not completely unexpected with his heat
approaching. He’s just not sure if Stiles has figured out why he keeps waking
up in their bed lately. Now with the addition of Stiles’ clothing in their
dressers and closet and some books on the nightstand, he just shrugs when Derek
comments on their new roommate.
It’s in the middle of the night again when he awakes to Stiles on him. Only
this time the teen is whining into his neck, a sheen of sweat covering his
body. Chris runs his hands down the fox’s back and Stiles’ shudders at the
sensation that chases down his spine. Stiles is feeling jittery and on edge and
all he wants is for the alpha to wrap him in his arms and calm him down.
Chris rubs his back carefully a few more times before wrapping his arms around
the teen and pulling him tighter against his body. Stiles’ struggles for a
moment before reversing his direction and starts trying to burrow into the
alpha’s body. Realizing what the fox needs, Chris tightens his grip before
rolling them over until the teen is pinned under his heavier weight. Stiles
takes a moment to try and worm his way further under the man before stopping.
Chris presses a little harder and Stiles relaxes into the bed. The teen turns
his head to the side and snuffles into Chris’ shoulder before opening his mouth
and biting down hard.
Chris winces as the sharp teeth pierce his skin, but only grunts in response.
After a few licks, the fox burrows his head against him and falls back asleep.
Chris tightens his body around the young man before adjusting to get a little
more comfortable and following him to dreamland.
When Derek awakens in the morning he finds his mate essentially smothering the
young fox. The back of a head of brown wavy hair and long fingers wrapped
securely around Chris’ wrist is the only evidence of where the fox is. The beta
takes a moment to listen and after confirming that two heartbeats are beating
next to him, he reaches his hand over and gently curls a lock of hair around
his finger.
He retreats his hand and tucks it under his pillow, bemusedly staring at the
sight before him.
Stiles has been with them for almost four months now and he’s still prickly at
times. He’s more relaxed and more open, his mouth sometimes running away from
him when he gets excited. Other times he’s more wary and withdrawn, usually in
unfamiliar situations that take him awhile to adjust to. Stiles impromptu move
in was more than welcomed by the couple and neither are going to say anything
in hopes that it’s not just a temporary arrangement as the omega’s hormones are
out of whack.
Derek blinks sleepily and when no one else rouses so he snuggles a little
closer to the other two before closing his eyes and going back to sleep.
 
                                      ***
 
Stiles whines from the back of his throat, face screwed up in a grimace and
presses into the pillow under his head. Chris is situated behind him; large tan
hands holding his hips in place as he calmly licks the young omega’s hole. Warm
puffs of breath hit the underside of Stiles’ tail and the teen pulls it higher
into the air. Chris’ tongue is hot and firm, rubbing across his sensitive
flesh. Gasps of air fall from between Stiles’ lips and he rolls his face into
the pillow, hands clawing into the pillowcase as waves of pleasure tingles
through his body.  
His hormones have been all over the place as he approaches his first heat. He
turned 17 three months ago and his body seems to be confused as to whether it’s
time or not. The boy has been emitting a strong sweet smell lately and it’s
putting the older two males on edge. Every morning Stiles wakes up hard,
sometimes to find himself leaking all over Chris’ thigh, (much to his
mortification.)
Sometimes he’s so wound up he latches onto the alpha as soon as he walks
through the door in the evenings. It’s become so bad that when his scent is
strongest, he’ll straddle the alpha and proceed to rub all over him in hopes of
enticing the male to take him.
Chris is tempted to take Stiles up on his offer, so very very tempted. As much
as the male would like to slide right into that tight heat, he withholds
himself. Stiles’ full heat hasn’t hit yet and the older male doesn’t want to
risk going too fast lest he scares the teen. It’s one thing to think he wants
it and another to actually need it.  
After hours of begging and rubbing himself against Chris this evening, Chris
has agreed to a compromise. The older male gently continues licking the omega,
an intimate grooming act between any were. Especially so between an unmated
omega and an alpha. The teen is mewling and attempts to raise his hips higher
in the air. The alpha patiently continues his licking, pausing every few licks
to prod at the pucker with his tongue.
Pheromones hang heavy in the air around them. Chris raises up from his hunched
over position, running hands soothingly over pale hips and around to knead at
the plush ass. A muffled noise comes from Stiles and he pushes back into the
hands eagerly, tail waving teasingly. With one finger, Chris lightly traces the
dark pink pucker. It’s fluttering and glistening from his spit.  
The fox has started to produce slick in the past hour. When he gets to the
point that it’s sliding down his thighs is when Chris will mount him. Until
then he’ll patiently work him over, getting him comfortable for what will
happen in later.
The larger male reach reaches down to grasp his heavy cock. He’s fully engorged
and swollen red from being in such close proximity to the younger male. He runs
his hand lazily over the shaft, breathing heavily as pleasure hits him. He
edges closer to the younger male, lining up behind him. Chris places his left
hand in the small of Stiles’s back and presses firmly down, demonstrating to
the fox that he needs to submit. Another whimper floats through the air. With
his right hand, Chris guides his cock to the small hole. The alpha has been
leaking pre-come and his own hormones have kicked in, pheromones signaling that
the older male will soon go into rut. Carefully Chris rubs the tip of his cock
against the pucker, fluid smearing across the pink skin. The fluid is filled
with hormones that will signal to the younger male that a strong alpha wants to
mount him. Chris continues this motion, jaw locked tight as he resists the
temptation to just slide right in.  
Whimpers fall fast from Stiles as he feels the cock rub against him. The
hormones are starting to affect him already, his hole is flexing more and he
feels a building heat in his lower pelvic region.  
After several moments of watching the pre-come gather across the pucker, Chris
leans back a little.  
“No no please, no come back,” Stiles begs, attempting to follow the alpha’s
body.
Chris lifts his hand and lightly smacks the teen’s left cheek before returning
his hand back to its original position.
When Stiles stops trying to follow, the older male starts tugging on his cock,
hand sliding fast up and down the shaft, thumb rubbing over the slit and
smearing more fluid back along the skin.  He groans at the sensation, reveling
in the build up in the lower part of his body. When he feels his orgasm
approaching, Chris leans forward again, cock tip lined up with that pretty pink
hole.  A guttural groan splits the air and a muffled shriek from the teen is
heard as thick streams of come land between the boy’s ass cheeks. The alpha
continues to milk out the fluid onto Stiles until no more emerges. Soft sobbing
can be heard and Stiles is rocking back and forth against Chris’s hand that
still pins him in place.  
The older male quickly scoops up some come that has slipped to the omega’s
balls and shoves it into the hole which is now starting to open up a little on
its own. Stiles cries out at the penetration, chest heaving as he tries to draw
in more breath. The larger male continues this act until nothing but smears
remains behind. When all of the come in in the teen, he takes his finger and
pushes it in all the way, making sure to rub the fluid into Stiles’ clenching
channel. Stiles keens at the sensation and pushes back as hard as he can. Chris
moves closer and drapes part of his body on top of the younger were. He’s
already getting hard again, cock starting to swell.
Stiles’ body is almost ready. Chris’ finger slides easily into his body as he
pumps it in and out of the channel. He can feel fluid start to ooze out around
it. Soon he’ll mount the omega and then knot him and the alpha feels the
anticipation build up at this thought, excited to have this young omega stuck
on his cock for the next several days.  
“Pretty baby, I’m going to ride you so hard. I promise I’ll give it to you just
like you’ve been asking,” he croons into the back of the fox’s head.
Stiles can only pant, gasps falling frantically from his lips as the alpha
continues to rile him up. This teasing pattern continues until the point where
Stiles’ is open. He’s not opened wide, but he’s opened enough that when Chris
goes to slide in there will be little resistance and much less pain. As Chris
lines up his cock, there is so much slick coating Stiles’ thighs. It rubs off
against Chris as he pushes his body flush against the fox. It’s a hot tight
grip around his cock and the alpha is struggling with not just rutting down
into the teen. He gives the fox a moment to adjust before he starts to move.
What begins as good intentions for a nice slow fuck falls to the wayside as the
omega unknowingly starts rhythmically clenching around Chris’ cock.
The mating becomes frantic after this. Stiles had cried out at the initial
penetration by the alpha, body wound so tight that he ended up exploding a few
moments later, spraying the bedding beneath his body. The alpha gives him no
time to recover after the first release as he’s riding high on his own
hormones. Instead, Chris powers into the younger body; snarls ripping through
the air as Stiles cries out more. Slapping skin fills the air as the older male
frantically fucks into the teen. Tears are running down Stiles’ face and he’s
sobbing into the pillow. His orgasm was intense, but there is no relief.
He chants “please please please” between hiccups of air. A large hand reaches
around him and grasps his cock and starts pulling harshly. Another orgasm
erupts from him soon after, but there is still no relief. He’s desperate, but
he doesn’t know why. The fox side of him is happy, but the human side of him is
confused as to why he’s in so much pain, why his stomach is clenched so tight
inside. No one’s ever told him exactly how his body will respond. He just
always assumed he would have instant relief when he ejaculates like he does
after masturbation.
Chris knows their mating is animalistic, but the teen will not have relief
until he’s stuck with Chris’s knot. As Chris continues to power into the teen
he nips any available flesh, arms locked tight bracketing the teen. Another
orgasm and more pitiful cries from beneath him. Four orgasms in and Chris feels
his cock start to swell at the base. There’s a sound of confusion from below
and as he grinds down into the fox, pushing until they are flush against the
bedding. When his knot finally catches he reaches a hand below and strokes
Stiles firmly to completion as he follows shortly thereafter.
Stiles lays pinned under the older male, harsh breaths falling from between his
lips. His body is a shaking mess and he can’t seem to stop trembling. At least
the tightness in his stomach no longer hurts, instead, it feels tight from
something else. He makes a startled noise when Chris wraps his arms around him
and rolls them to the side away from the cooling mess of the sheets. When they
are situated comfortably, the older male brings up a small throw that has
somehow managed to remain on the bed and drapes it over them, curling
protectively around the fox.
As Stiles breaths slow, he relaxes cautiously into the bedding and back into
the firm body behind him. He twitches an ear and oh wow, that, that was not
expected at all he thinks dazedly. With a fumble, he reaches back and yeah his
tail is still out too, squashed a little uncomfortably between their bodies. He
makes a little squawk when he tries to tug it out before Chris reaches over and
carefully maneuvers it out and smooths the fur down in a gentle caress. He tugs
the the blanket back over them before settling down, placing a soft kiss on the
back of Stiles’ hair.
“Umm… so that happened,” Stiles starts awkwardly. “And apparently my fox likes
you,” he continues to ramble, gesturing vaguely at his ears and tail. And holy
shit what is he supposed to say because while the beginning was awesome, that
middle part was not cool at all. Whatever was going on with his body after
those orgasms didn’t bring relief, no thanks. He’s feeling kind of betrayed at
that. He doesn’t want to repeat that ever. Maybe he’s broken. The end, though,
yeah knotting, knotting is amazing he thinks. Knot in his ass, his fox and
human side are very much in agreement with this part of sex. He wonders if he
can do it again. You know without that whole middle part again. Maybe it was
Chris’ fault he thinks with a frown. He’s brought out of his internal rambling
when Chris hums.
“Well I like your fox too,” he says calmly, trailing his hand carefully from
Stiles’ shoulder down his arm until he captures the fox’s hand and laces their
fingers together. Stiles is confused for a moment, still wrapped up in his
earlier thoughts before he sorts out what Chris is referring too. Meanwhile,
Chris brings their hands up to his mouth and places a small kiss on the back of
Stiles’ before releasing it. He reaches up and cards his hand through the fox’s
hair, careful not to hit the ears that keep twitching.
Okay, Stiles is blushing. He’s totally blushing. He feels a lot hotter now and
he’s really hoping that Chris won’t notice how his usual pale as the snow skin
is turning pink. Or if he does he’ll have pity and not say anything about it.
He gives a wiggle and freezes when a tingle shoots up his spine and oh shit,
that was not expected and because Stiles is curious and needs to know he tries
it again. When he feels Chris tense behind him, he stops and hunkers a little
into himself.
“Sorry,” he mutters to himself, ears feeling hot.
“No,” Chris strangles out, “no, it’s okay. I just don’t want you to hurt
yourself.”
After a moment Stiles’ relaxes and yup his fox is definitely in control because
he tries the wiggle again and oh God that is amazing, so amazing. So he does it
again only a little harder, meaning this time he pushes back with a grinding
motion. Yup, those are sparks shooting up his spine and wow he thinks he can
orgasm again and you know what, let's see if that's possible because Stiles has
never backed down from a challenge and this challenge feels awesome he sings to
himself under his breath.
Chris was not expecting this turn of events. The teen is grinding back on his
dick like a stripper against a pole, and Jesus the kid’s got some power in
those hips. He feels his eyes roll back after a particularly harsh grind
combined with a fist tight flexing around his cock and whatever deflation of
his knot that was happening is happening no more because he is definitely
inflated again and he didn’t even know that was possible. The alpha groans and
drapes himself over the omega and oh that whimpering, yeah that’s not from
Stiles he realizes dazedly, that’s from him.
End Notes
     *This is a series that begins with Chris and Derek's mating. Stiles
     will make up their third.
     **Alpha/Beta/Omega dynamics are different in this verse. Only alpha's
     can knot with potential mates, regardless of orientation of their
     partner. All orientations can carry, but fertility decreases with
     each orientation with omegas as the most fertile and alphas the
     least. Omega's are the rarest of the orientations due to their higher
     fertility rates which leads to pregnancy outside of both mating and
     heats.
     ***Mating can occur across different species, but not result in
     offspring. i.e. A werecat and a weredog may mate, but no viable
     offspring will be born. Mating between animals in the same species
     such as wolves, dogs and foxes do result in viable offspring with
     usually the litter all being of similar specie, though on rare
     occasion a litter may be mixed.
     ****Stiles is on birth control.
     *****An omega will only continually expose their ears and tail to
     those they feel safe with.
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