Posted originally on the Archive_of_Our_Own at https://archiveofourown.org/
works/6873061.
  Rating:
      Explicit
  Archive Warning:
      Underage
  Category:
      M/M
  Fandom:
      Ouran_High_School_Host_Club_-_All_Media_Types
  Relationship:
      Hitachiin_Hikaru/Hitachiin_Kaoru
  Character:
      Hitachiin_Kaoru, Hitachiin_Hikaru
  Additional Tags:
      Sibling_Incest, Twincest, Twins, Established_Relationship, No_Plot/
      Plotless, Plot_What_Plot/Porn_Without_Plot, Birthday_Sex, Morning_Sex,
      Blow_Jobs, Anal_Fingering, Anal_Sex
  Stats:
      Published: 2016-06-09 Words: 3080
****** Celebration ******
by tastewithouttalent
Summary
     "Hikaru must be more awake than Kaoru is; when Kaoru turns his head
     to look down Hikaru is grinning up at him with his eyes bright and
     absent any of the sleep-haze Kaoru can feel washing his own thoughts
     slow and dragging in his head." Hikaru wakes Kaoru up for their
     shared birthday present.
Kaoru wakes up warm.
He’s tangled into the blankets of the bed with the morning sunshine streaming
through the windows to glow heat across the sheets and over his bare skin where
he has a leg thrown out sideways and half-off the mattress, but it’s not the
blankets or the sunshine that is humming heat through his veins and glowing
across his skin. That, he is sure, has everything to do with the weight of
another person leaning heavily against his other leg and the fingers currently
working their way along the flat of his stomach and down to the elastic of his
boxers.
“Oh,” Kaoru says, his voice husky with sleep and dragging over the heat rising
through his veins. “Mm. Morning.”
“Morning,” Hikaru purrs, the sound turning over in his throat until it comes
out closer to seduction than a greeting. He must be more awake than Kaoru is;
when Kaoru turns his head to look down Hikaru is grinning up at him with his
eyes bright and absent any of the sleep-haze Kaoru can feel washing his own
thoughts slow and dragging in his head. “Did you sleep well?”
“I guess so,” Kaoru says, catching himself into a yawn halfway through the
sentence. Hikaru’s smile goes wider, his chin dipping down to cast his eyes
into dark as his fingers catch and curl under Kaoru’s boxers. Kaoru’s yawn
stutters, turning itself into a whine halfway through, and Hikaru draws his
clothes down and off his hips, purring something incoherent and pleased as he
frees Kaoru’s skin from the fabric.
“Sorry to wake you up,” Hikaru says, not sounding sorry at all. He’s rumpling
the blankets as he moves, knocking the cover off Kaoru’s hip and his own
shoulders at the same time, but Kaoru doesn’t protest this casual exposure of
his skin to the morning sunlight. He’s warm enough all on his own, now, the
heat in his veins flushing him half-hard while Hikaru is still tugging his
boxers down his calves and off his feet. “I wanted to give you your birthday
present.”
“Already?” Kaoru asks, but it’s not really protest, and when Hikaru starts to
slide back up the bed he lets his knees fall wide, lets Hikaru’s trailing
fingers wander up the inside of his thighs instead of bracing against the bed.
“Wouldn’t letting me sleep in have been a present too?”
“Not for me,” Hikaru tells him, the words fitting into friction against Kaoru’s
skin. Kaoru jerks with the heat, his legs trembling as they arch him up and
closer towards Hikaru, and Hikaru hums almost a laugh and presses his mouth
hard to Kaoru’s hip for a moment. “And this is my present too.”
“Yes,” Kaoru agrees. “Happy birthday, Hikaru.”
“Mm,” Hikaru purrs, and then he turns his head sideways and catches the warmth
of his mouth against the head of Kaoru’s cock. Kaoru jolts, startled by the
rush of heat even though he knew what was coming, and Hikaru laughs against
him, mumbles something that Kaoru knows is intended to be happy birthday
muffled by the obstruction at his lips. As it is the vibration of the sound
just shudders down Kaoru’s spine, surging into heat low at his hips, and then
Hikaru is curving up over him, bracing a hand against his hip and wrapping the
other around the base of his cock as he slides in closer, and Kaoru can’t think
to do anything but groan a low, breaking note in the back of his throat as
Hikaru’s mouth drags over him. It makes Hikaru laugh, the sound running up
Kaoru’s spine like a touch, and then he’s moving, drawing back by an inch so he
can slide his lips back down as he presses his tongue flush against the other’s
length. Kaoru’s thoughts are still hazy, his attention slipping right from the
first distraction of waking and into the dizzy spin of pleasure in his veins,
and it’s not until Hikaru has drawn away from him completely and turned his
head up that Kaoru realizes there’s an expectation on his side too.
“Kaoru,” Hikaru says, purring out over the name as Kaoru blinks in a hurried
attempt to clear his thoughts of too-much heat. “Are you going to get the
bottle or are we going to be here all day?”
“I’m trying,” Kaoru says, and he is, he’s reaching up over his head to fumble
unseeing at the drawer at the head of the bed. Hikaru is watching him, a grin
tugging at the corner of his lips as he stays in the languid sprawl he has
between Kaoru’s knees; when Kaoru glances down at him Hikaru raises an eyebrow
and draws his hand up in a slow stroke of friction that pulls all Kaoru’s
attention away with it. His hips arch off the bed, his spine curves, and when
he says “Hikaru” it’s as much chiding as it is encouragement.
“Open it,” Hikaru says again, and he’s reaching up with his free hand,
gesturing command as he ducks his head again to press his tongue against the
head of Kaoru’s cock. Kaoru jolts again, whimpering insincere protest, and then
the drawer comes open and he fumbles himself into a hold on the bottle of lube
inside. Hikaru’s offering his palm, his fingers spreading wide in suggestion,
and Kaoru braces the bottle with one hand so he can open the lid with the other
and spill liquid across Hikaru’s fingers. He recaps the bottle, reaching up to
replace it in the drawer while Hikaru reaches down between his legs, and Hikaru
sucks the head of Kaoru’s cock back over his tongue just as he presses slick
fingers against the other’s skin. Kaoru shudders a sigh, stretching a hand out
to hold himself steady against Hikaru’s shoulder, and Hikaru moves without
being told, working a finger just inside Kaoru’s body as the other lets the
tension along his spine ease into surrender. There’s the drag of friction, a
prickle of almost-unpleasantness along his spine, but then Hikaru tightens his
lips and sucks pressure against the other’s cock, and Kaoru moans and lets
himself relax into the stretch so Hikaru can push deeper into him.
“Hikaru,” he whines, not sure what he’s asking for, not sure if he’s asking for
anything at all; his fingers slide through Hikaru’s hair, pushing the bright
color of it off the other’s features, and Hikaru hums something that feels like
encouragement and shifts his hand to form a rhythm under the drag of his
movement. It’s easier to relax with the motion, easier for Kaoru to let himself
ease into the pressure like he’s melting in the sun-bright illumination over
the sheets. Hikaru draws his mouth back, trailing his tongue up across the head
of Kaoru’s cock as he goes, and Kaoru can’t help the way his hips rock up to
follow the heat of Hikaru’s lips as the other draws back to catch a ragged
breath.
“Another?” Hikaru prompts, the question more suggestion than actual inquiry.
He’s drawing his touch back, easing some of the pressure inside Kaoru as he
fits another finger next to the first; Kaoru makes an incoherent noise, too
unintelligible for anyone but Hikaru to understand, and Hikaru grins and pushes
back into him with both fingers together. Kaoru can feel himself tense, the
reaction too involuntary to even attempt to restrain, and Hikaru hums
reassurance and ducks his head back down. Kaoru’s expecting another slide of
Hikaru’s mouth over him, expecting the warm suction of the other’s lips to
shudder friction out into his veins, but Hikaru stops short of that, licking
across his skin instead of letting Kaoru buck up into his mouth. The glancing
contact makes Kaoru whimper, tenses against his thighs as he tries to rock up
for more, and Hikaru laughs without words and draws back a little so he’s only
barely touching Kaoru’s cock. Kaoru huffs protest that sounds more like
amusement than he intends and Hikaru pushes farther into him, turning his wrist
to work his fingers in deeper while Kaoru shudders with the friction.
“Hikaru,” Kaoru manages, hearing the name jump up into a plaintive whine far
higher than he intended. “More, please.”
“Are you sure?” Hikaru teases. When he shifts the angle of his wrist and pushes
in deeper Kaoru can feel the pressure radiate all up his spine, can feel the
white heat of it flickering out to blur his vision and tense his throat on a
moan. “I don’t think you’re ready for more, Kaoru, do you?”
“Don’t tease me,” Kaoru begs, tipping his chin down so he can see the way
Hikaru is smirking at him. Kaoru still has a hand in the other’s hair, still
has his fingers sliding through the strands; the sunlight from the window
catches against his wrist to cast a stripe of shadow across Hikaru’s face.
“It’s my birthday, you can’t be mean to me today.”
“It’s my birthday too,” Hikaru reminds him. He’s still smiling, his eyes are
still fixed on Kaoru’s face, but he hasn’t slowed the drag of his fingers, he’s
still pressing Kaoru open around the weight of his touch. “Doesn’t that mean
you have to be nice to me too?”
“I am,” Kaoru protests. “Am I teasing you?”
“You were,” Hikaru says, and ducks his head in close to press his mouth to
Kaoru’s thigh. Kaoru jumps at the contact, his body tensing involuntarily to
the friction, and he can feel Hikaru’s mouth curve into a smile against the
line of his hip. “You kept sleeping, it’s been hours.”
“It can’t have been,” Kaoru says, trying to turn to see the clock against the
bedside table. “It’s not that late, is it?”
“It felt like hours,” Hikaru amends. “I’ve been letting you sleep as long as I
could, it’s time for you to let me do what I want.”
“I’m not stopping you.” Kaoru’s foot slips against the sheets, his balance
giving way to drop him back down over the inch he’s attained between his hips
and the bed. Hikaru rocks in over him, bracing a hand against his hip to hold
Kaoru down as he draws his fingers back, and Kaoru lets his hand slide out of
Hikaru’s hair and down to the other’s shoulder as Hikaru rocks his weight up
and forward over him. Kaoru reaches out with his free hand to catch his
fingertips against Hikaru’s waist and slide down over the warm curve of his
skin, and Hikaru braces one hand against the sheets over the other’s shoulder
so he can catch at the other side of his boxers as Kaoru pushes against the
waistband. “Aren’t we doing what you wanted?”
“Not yet,” Hikaru says as they get his clothes down to his knees and he shifts
to kick himself out of them. “We’re on our way there, though.”
“That’s fine, then.” Kaoru lets his knees angle wide and turns himself sideways
to follow Hikaru as the other shifts to lie on his hip against the tangle of
their bedsheets. The sun flickers over his shoulder, catching into Kaoru’s eyes
and washing his vision to white for a moment; Kaoru flinches from the bright,
shutting his eyes against the ache of the illumination, but Hikaru’s hand is
catching at his knee to draw him closer and Kaoru can follow the heat of
Hikaru’s skin under his palm to lean in towards the other without needing the
assistance of sight. Hikaru huffs a laugh against Kaoru’s mouth, his knee fits
between the open angle of Kaoru’s thighs, and Kaoru is just blinking his eyes
open in the shadow cast by the other’s shoulders when Hikaru rocks his hips
forward to fit himself against Kaoru’s body. Kaoru sighs anticipation, and
hooks his knee up over Hikaru’s hip, and Hikaru is pressing forward against him
almost before they’re lined up, like he’s anticipating the way Kaoru arches his
back to press closer even before the other moves. Hikaru’s hand slides to
Kaoru’s back, Kaoru’s arm drops around Hikaru’s shoulders, and then they’re
coming together, Kaoru whining not-quite protest as the heat of Hikaru’s cock
slides up and into him.
“Ah,” Hikaru breathes, an exhale weighed down with the resonance of heat across
his tongue. “Kaoru.”
“Hikaru,” Kaoru offers back, the sound of the other’s name meaningless except
in the space between the two of them, right now, where even the sound of their
voices is more for the purring hum in their own throats than because either of
them needs words to communicate. Kaoru ducks his head forward until he can
press his forehead to Hikaru’s, and Hikaru’s fingers tighten against his back,
his hand spreading wide to fit into the curve of Kaoru’s spine as his other
slides down and across the other’s stomach. Hikaru’s moving back, sliding away
by an inch as he shifts, but Kaoru doesn’t protest; he just moves closer to
match, arching his back under the support of Hikaru’s touch until he presses
against the other’s skin, until the drag of Hikaru’s fingers closing around him
is caught between the line of their bodies. Hikaru sighs again, loud enough
that the exhale nearly takes on the shape of a moan, and when he rocks forward
it’s harder, the movement followed with enough force that he slides deeper by
an inch than he did on his first stroke. It makes Kaoru tense against the
force, gusts the breath out of his lungs in a whimper of sound, and then
Hikaru’s fingers settle around him and drag up against the heat of his cock.
Kaoru’s vision goes white for a moment, his throat opening on an unvoiced moan
of heat, and Hikaru laughs warm against his lips and moves again, rocking up
into Kaoru while the other is still shuddering through the first rush of
friction.
“Oh,” Kaoru manages, choking off the sound in the back of his throat, and he
lets Hikaru’s shoulder go to reach down instead and catch the other’s fingers
under his own. Hikaru shifts his hand immediately, spreading his fingers wider
like he was just waiting for Kaoru’s touch, and their hands fall into alignment
with each other, Hikaru’s fingers fitting between Kaoru’s to make a smooth drag
of friction over the other’s skin as they move together. Kaoru takes a breath,
and slides his hand up, and Hikaru follows him, fitting the motion of their
shared grip to the thrust of his hips so their breathing catches into a single
note of heat.
Kaoru doesn’t have to think about their rhythm. Fitting himself against Hikaru
is an easy thing, more instinctive than deliberate, and this is no different:
his knees pressed around Hikaru’s, their hands stroking up over his length as
they rock together so he can take Hikaru deeper into his body. It’s
overwhelming to have the pressure inside him and the friction around him at the
same time, makes him feel like he’s drowning in the warmth of the moment, and
the sunlight is spilling over them both, now, catching hazy illumination at
Kaoru’s lashes and coloring Hikaru’s parted lips into damp pink that Kaoru
can’t resist. He leans closer to catch Hikaru’s mouth with his and Hikaru tips
in to meet him, purring something incoherent and shuddering to heat over
Kaoru’s tongue. It sounds like his name, it feels like appreciation, and Kaoru
lets his eyes shut to the brightness of the moment, lets the white-bright heat
in his veins glow against his shut eyelids with more illumination even than the
sun can give. Hikaru is moving faster, Kaoru’s hand is sliding quicker over
himself, their shared rhythm is falling to reflexive desperation and Kaoru
doesn’t know which of them is breathing harder, can’t keep track of whether the
whimper in his throat is his own or borrowed from the half-formed press of
Hikaru’s lips against his. It’s enough that they’re together, that the lines
between his body and Hikaru’s are blurring into unrecognizability, that Kaoru
doubts either of them could tell which is which, much less an outsider seeing
them tangled as close as they are now. They’re both arching closer, both
clinging close to the flushed warmth of whatever bare skin they can reach, and
when Hikaru whimpers Kaoru moans, the sound of rising heat on their tongues
harmonizing in the space between them without either of them trying. Kaoru
takes a breath, and Hikaru lets it out, and Kaoru isn’t sure anymore which of
them is moving, if he’s guiding the movement of their hands or if it’s Hikaru
setting the rhythm, if Hikaru is thrusting up into him or if he is rocking
himself down against Hikaru. It doesn’t make a difference anyway, not between
them, not when they’re like this; all that really matters is the heat Kaoru can
feel rising along his spine, the tension he can hear catching at Hikaru’s
tongue with every breath the other takes. Kaoru arches in closer, Hikaru’s hand
at his back tightens; and then Hikaru groans, and Kaoru jerks, and they both go
still but for the shared quiver of heat running through them. Kaoru is shaking,
his whole body trembling under the press of Hikaru’s hand at his back and
Hikaru’s fingers around his cock as he comes; but Hikaru is no better, with his
legs tensing and easing in tiny convulsive shudders against Kaoru’s. Every
breath Kaoru takes is heavy with heat, the air too-warm from the narrow space
between his lips and Hikaru’s, but he doesn’t pull away, and neither does
Hikaru. They stay as they are, pressed skin-close and tangled more thoroughly
with each other than with the sheets, until Hikaru has caught his breath back
and Kaoru’s tremors of satisfaction have subsided into languid calm all through
his body.
“Mm,” Hikaru finally offers, the sound so close to Kaoru’s mouth that he can
feel the motion of it, can feel the curve of Hikaru’s lips on a smile as he
turns his chin up to press nearer to Kaoru’s mouth. “Morning.”
Kaoru sighs, and smiles, and lets his fingers in Hikaru’s hair slide down
against his shoulder. “Happy birthday, Hikaru.”
Hikaru laughs, his hand pressing harder against Kaoru’s back for a moment.
“Yeah,” he says, and catches his mouth against the other’s for a lingering
kiss. “Happy birthday, Kaoru.”
It is, even before Kaoru smiles and leans in to match Hikaru’s kiss with one of
his own.
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