
Posted originally on the Archive_of_Our_Own at https://archiveofourown.org/
works/13255686.
  Rating:
      Explicit
  Archive Warning:
      Underage
  Category:
      M/M
  Fandom:
      僕のヒーローアカデミア_|_Boku_no_Hero_Academia_|_My_Hero_Academia
  Relationship:
      Kaminari_Denki/Kirishima_Eijirou
  Character:
      Kirishima_Eijirou, Kaminari_Denki
  Additional Tags:
      Horny_Teenagers, they're_in_high_school_so_it's_underage, Making_Out, Dry
      Humping, Hormones, Mild_Language, Masturbation, Voyeurism, kind_of, Post-
      Coital_Cuddling, Fluff, Fluff_and_Smut, No_Plot/Plotless, Plot_What_Plot/
      Porn_Without_Plot, I_have_the_feeling_they're_kinda_ooc_I'm_sorry
  Stats:
      Published: 2018-01-03 Words: 4286
****** Do it for him ******
by omaewamoh
Summary
     "B-but like, you do it to yourself, and uh, I watch."
      
     Oh.
      
     Kirishima has to admit that he did not expect that.
Notes
     Hey there!! I finally decided to pick up writing as a hobby again
     after I did an one-year break, I hope my style and grammar are
     moderately acceptable lol. I'm already apologising for typos/grammar
     errors in advance haha but anyways, I hope you'll enjoy this
     regardless!<3
See the end of the work for more notes
"Hey, Kiri…"
 
"…hm?"
 
His voice is soft, a mere whisper, careful to not alarm any of his other
classmates. "Do you… want to come to my room?"
 
 
 
Requests, instructions like that have been starting to become a frequent
occurrence between Kirishima and Kaminari, and every time one of them invites
the other to his room, they always know what they are going do. They know
they'll end up fooling around in either of their rooms, but that's exactly what
they intend to do, anyway.
 
It's not different today — after both of them manage to slip out of the common
room into one of the elevators without anyone noticing them — it's especially
difficult when Mina is around, but they somehow manage to sneak around her
while she's gossiping with Ochako and Tsuyu — their hands automatically
entangle as they arrive in the floor where Kaminari's room is located. 
 
Intertwining their fingers has become some sort of ritual as well, and
Kirishima squeezes Kaminari's hand hard as the blonde tugs him to his room,
quickly fumbling with the lock until he finally manages to push the door open.
 
Kaminari briefly turns his head to flash Kirishima a smile — it's small and
kind of shy, which is honestly extremely cute, and his cheeks are bright red
already, but then he locks eyes with him and he'd be lying if he said he
couldn't relate to the desperation, the hunger in his boyfriend's eyes. God, he
wants to kiss him so badly.
 
However, Kaminari's expression is enough to make Kirishima's face flush a
decent shade of pink before he pushes the blonde back who stumbles into his own
room with a short, surprised gasp, the other boy following him and immediately
closing the distance between them. 
 
Kaminari stands with his back against the door, trapped in between Kirishima's
arms which are on either side of his shoulders. The redhead swiftly pushes his
bangs back (he's wearing his hair down today because he ran out of hair spray,
much to his own dissatisfaction) and looks around in Kaminari's room — it's
messy, but not messier than usual, his bed is not made either (which isn't that
much of a problem right now anyway), the blinds are drawn, letting the warm,
faint light of the setting sun in.
 
"…hey, Eiji", he hears Kaminari saying and turns his head to look back at the
blonde who is slightly pouting, his hair a little more mussed than usual. "How
long are you still gonna stare at my room?" He hesitates for a split second.
"Kiss me already."
 
Kirishima can't help the grin that immediately spreads across his face before
he finally leans in, one hand coming up to cup Kaminari's jaw. He closes his
eyes after he sees Kaminari doing the same and presses their lips together in a
chaste, soft kiss. He hears and feels the blonde sigh as he pushes back, arms
coming up to wrap around Kirishima, his hands caressing his shoulder blades as
he pulls him closer. Their lips move together in a loving dance, a perfect
balance of receiving and giving pressure to the other's mouth.
 
Kirishima can't deny he likes starting slow when doing those kinds of things
with Kaminari, but going fast isn't bad, either. Soon, their slow and gentle
pace vanishes and Kirishima's hand wanders from Kaminari's cheek to the back of
his head, threading his fingers through blond locks as the other sighs again.
Their rhythm starts becoming a little sloppy as the redhead tilts his head and
parts his lips a little to press open-mouthed kisses against Kaminari who
squeezes the other's shoulders, whimpering softly as he gives in, opening his
mouth as well as their kiss grows more heated.
 
Both of their breathings become ragged as Kirishima's tongue peeks out and
traces Kaminari's bottom lip who reflexively opens his mouth wider, ready to
welcome his boyfriend's tongue in his mouth. Kirishima sighs at the reaction,
feeling his face grow hotter and a spark of pleasure traveling down his spine
as he slips his tongue into Kaminari's mouth, pushing closer as the other
whimpers while reaching back with his own. Their tongues entangle for a second
before he pulls back, earning an irritated whine as Kaminari chases after him
with his mouth. 
 
The blonde's hands reach up and caresses the hair on Kirishima's neck with his
fingertips. 
 
The redhead sighs and leans in again, this time his tongue immediately darts
forward and Kaminari moans softly as he mimics Kirishima's movements.
 
Kirishima moves his head in a rhythm, pushing forward and pulling back
slightly, his tongue stroking against Kaminari's who clings to him desperately,
arms tightening around his boyfriend's shoulders in an attempt to pull him
closer, to pull him flush against him. 
 
"Nh… ah", Kaminari inhales sharply as their tongues push together and
Kirishima's sharp teeth graze his lower lip. It doesn't hurt; in fact, it
tickles slightly and Kaminari shudders up as pleasure surges within him. Their
kiss is sloppy and wet and it leaves him breathless in a way he can't get
enough of.
 
Kirishima presses their bodies together, one hand gripping at Kaminari's waist
while the other is still buried in his hair and tilts his head to the side,
just a little bit, and pulls the collar of Kaminari's shirt towards his
shoulder to have better access to the other's neck as he starts trailing kisses
along his jaw and throat.
 
The redhead can feel the other boy's moan rumbling in his throat before he even
hears it, and moves further, peppering pliant, open-mouthed kisses all along
Kaminari's neck before he latches his lips on to his soft skin and sucks.
 
"Ah— fuck, Eiji." Kirishima doesn't miss the way the blonde's hips twitch as
sharp teeth sink into velvet skin and he sucks harder, just barely pulling back
before he draws blood. Kaminari's skin is pretty thin and breaks easily,
especially on his neck area, so he has to be careful.
 
He observes the way Kaminari's pale skin turns a slight red-purplish colour,
forming a new, fresh hickey over the layer of older, fading ones before he
cocks his head to be met by a desperate gaze. Kaminari's cheeks are flushed
red, his lips swollen and glistening with saliva and god, his eyes are dark and
clouded with desire and Kirishima absolutely adores that look on Kaminari's
face.
 
Warmth pools in the pit of his stomach as he shudders, diving right back to
suck at the new hickey before moving further and sucking at the junction of
Kaminari's neck, earning a desperate gasp and another twitch of his hips. He
grazes his teeth along the smaller teen's collarbone, leaving small marks all
along the way before he presses soft kisses against the bruised skin.
 
"Denki…" He sighs as he feels hands curl tighter into his locks, the slight
pain of his hair being pulled causing him to tremble in pleasure. "I love you."
 
"Eiji…" It's a breathy whisper, maybe even a plea, and he grips Kaminari's
waist harder. He hears the blonde swallow. "Eiji. C'mon."
 
Kirishima raises his head to give Kaminari a questioning look through his red
bangs, just to be met by soft, slightly wet lips again. He groans as the blonde
rakes his hand through his hair and licks at the corner of his mouth, but
instead of slipping his tongue in, he pulls away to gaze at Kirishima.
 
With his beautiful flushed face and swollen lips and needy, hooded eyes, even
though his expression looks a bit softer this time.
 
"God, Eiji, I love you so much."
 
Kirishima can feel his heart swell at the way Kaminari says that — in fact, it
swells because it's Denki who says it, anyway.
 
The smaller teen doesn't even give Kirishima time to reply, he just pulls him
down again to kiss him. It's slower than their previous kisses but it's still
unbearably hot, especially as Kaminari nips at his lower lip while the redhead
feels up his chest. Kaminari's hips stutter once more, a sweet aah, slipping
through his lips as Kirishima's fingers trace his areolae, and god he has to
bite the inside of his cheek to keep himself from moaning and rutting against
Kaminari.
 
Instead, he finally slips a thigh in between Kaminari's thighs and the blonde
immediately grunts, pulling away from the kiss to angle his face downwards and
stare down at their aligned crotches and the room immediately feels dozens of
degrees hotter. 
 
"Can I start moving?" Kaminari hears Kirishima asking him in a husky whisper,
and he shifts his gaze, seeing that the redhead looks just as breathless as he
sounds.
 
Kaminari has to bite back a moan as his hips move without his permission,
grinding his crotch into Kirishima's kneecap which is pressed against the front
of his jeans. "F-fuck, yes."
 
And Kirishima finally shifts, slow and deliberate, pressing closer, rubbing his
thigh up against Kaminari's groin. The blonde lets out a shuddering gasp as his
hips buck unintentionally against his lover, stretching into a moan as
Kirishima actually moves with him, stirring nothing but pure pleasure in both
of them. 
 
Kirishima shifts and adjusts a little, still with his leg pressed in between
Kaminari's thighs as he starts kissing him again, slowly, leaving him enough
space to gasp for air while he keeps rubbing his knee against Kaminari's
crotch.
 
The blonde moans as Kirishima breaks their kiss to gasp for air, and pushes his
hips forward, feeling the redhead's erection pressing through the fabric
against his hip and Kaminari's own cock pulses in response as he realizes he's
just as hard as he himself is.
 
They soon lose their rhythm and just start humping against each other, hard and
fast, hands and knees pressed against each other's crotches in frantic,
desperate movements, the heat between them slowly becoming too much, their
pants and moans echoing in the room.
 
"Ngh—ah", Kirishima moans as he struggles to keep himself up, the pleasure
surging through his entire body making his knees weak. "W-wait, wait a second."
He gasps and forces his hips to halt.
 
"Wha-what's wrong?" Kaminari asks, lust clouding his vision but still managing
to stop the desperate humping.
 
Kirishima doesn't answer (at least not verbally), as he takes Kaminari's hand
and drags him over to his bed while wriggling out of his shirt, the fresh air
cooling his overheated body. He lets himself fall back against the cushions,
pulling Kaminari with him who immediately sits up, straddling Kirishima who 
grabs his hips.
 
Before the taller teen can even think of starting to move his hips again,
Kaminari stops him.
 
"No wait, I, um…" He bites his lip.
 
"Huh? What's wrong babe?" Kirishima props himself up as well, eyes not leaving
Kaminari's face.
 
Kirishima can't really read the blonde's expression, his face is still flushed
with dark eyes, but he looks some sort of… embarrassed? Bashful? Nervous? He
immediately worries that he did something wrong and already opens his mouth to
apologize but Kaminari cuts him off.
 
"I-I was just thinking if you could do…" He swallows and wriggles a little.
Kirishima tries his best to ignore the sharp pang of pleasure in his groin at
his movements. Whatever it is that Kaminari wants him to do, if it makes him
happy, he'll do it.
 
"C-could you do… y'know…" His voice gets quieter at the end as he curls his
hand and jerks his wrist up and down, his face flushing, but Kirishima doesn't
really know why. They have fooled around like this before, and yes, they have
gotten each other off by using their hands too, so why is Kaminari so
embarrassed about it?
 
"B-but like, you do it to yourself, and uh, I watch."
 
Oh.
 
Oh.
 
Kirishima has to admit that he did not expect that.
 
Kaminari quickly raises his hands at Kirishima's baffled expression, trying to
laugh it off. "But you don't have to! It's perfectly fine if we just do it like
usual—"
 
But Kirishima already rolls him over carefully so he's the one to look down at
his lover, pressing a quick kiss against his lips before withdrawing, resting
with his back against the headboard. Kaminari looks at him timidly,
questioningly, and the taller boy nods, unable to suppress a grin at Kaminari's
alarmed yet turned on expression.
 
He shifts his eyes down to his own crotch, seeing how his erection presses up
against the fabric of his jeans.
 
He quickly peeks up at Kaminari who sits on his knees in front of him, hands
grabbing the bedsheets, and sees how his gaze is fixed on Kirishima's crotch as
well, sees how he unconsciously licks his lips. It just urges him on, seeing
Kaminari so horny and desperate to see him jacking himself off, even though it
is in fact a little bit embarrassing.
 
Kirishima slowly presses a palm against his groin, feeling his erection through
his jeans and grunts at the sensation. It feels good, finally getting a hand
fondling his dick, even though he'd like it better if it was Kaminari's.
 
His hand slowly caresses the skin around his navel, slipping his fingertips
below the waistband of his pants before he unbuttons and unzips his pants,
pulling them down mid-thigh, his erection visibly straining his boxers. There's
already a wet patch of precum where the tip of his cock lies.
 
He hears Kaminari's breath hitch as he reveals the prominent tent and looks up,
seeing how his boyfriend has crawled closer to get a better view. Kirishima
spreads his legs a little and Kaminari looks up as well, only to see that the
redhead has been staring at him and quickly turns his head away, flushing.
 
Kirishima thinks he's kinda cute like this, embarrassed but needy and he
really, really wants to give his boyfriend a reward for being so adorable, so
he gropes himself through his boxers, fingers finding the outline of his erect
dick and his hips snap up at the contact while he lets out a deep, guttural
groan.
 
His head thumps back against the headboard, eyes lidded and vision blurry, only
barely able to see how Kaminari turns his head to stare at Kirishima again.
 
The taller boy's hips rise from the bed to push his boxers down as well and
they bunch along with his jeans below his knees so he can still keep them open
enough for Kaminari to see. He's all worked up, his cock hot and heavy as it's
fixed flat against his lower stomach, precum smearing the tip.
 
He himself knows his dick's physique pretty well, but Kaminari stares
intensely, taking him in, which is embarrassing since he's the only one with
his dick out, and maybe he's high on dopamine or something but Kaminari gazing
at his cock like that turns him on like nobody's business.
 
Trying to blink the cloudiness in his vision away, he sees how Kaminari bites
his lip and his cock twitches at the sight.
 
Kirishima finally, if slowly, wraps his hand around the base of his cock and
bites back a moan, hips already shaking with pleasure. He grips tighter,
sliding his hand up torturingly slow, breath catching in his throat as he
finally reaches the wet tip of his dick. A shudder whacks through him as his
thumb and index finger rub around the head, against the slit, fingers already
threading with precum.
 
"Oh god", Kaminari chokes out, and Kirishima tries his best to focus on the
silhouette in front of him, watching his dick pulsing with need. He's still on
his knees, but he's clasped a hand over his mouth, fingers only barely hiding
the deep red blush staining his face.
 
It's the last thing Kirishima sees before he tilts his head back with a ragged
moan, palm rubbing against the head of his dick in circular motions, before
sliding it down, spreading his precum across his length. His hand twists at the
base, squeezing himself hard, and he growls as his hips snap up, fucking
himself once, twice into his hand.
 
"Damn, D-Denki", he stutters, followed by a throaty ahh as he moves his hand up
and down, slick, wet noises filling the room along with his breathless groans
and gasps as he humps against his hand. His sharp teeth sink into his bottom
lip, trying to muffle the wanton noises coming deep from his throat. It feels
so good, finally chasing his release after being worked up so much, and
imagining that it's Denki who does this to him actually makes it better.
 
Since Kirishima has his eyes closed, he's able to concentrate more on the
noises, the movements Kaminari makes, and as he calls out his name, he swears
he can hear him moan along with Kirishima. His fingers skate across the burning
hot skin, feeling the skin ripple and stretch with every up-and-down movement
while he listens to Kaminari's uneven, laboured breathing which sounds so hot
to him right now, he can't get enough.
 
His hand twitches as he starts moving faster, just barely twisting, only
sliding up and down his length, his hips following the movements of his palm
while he sometimes lets out a deep moan, breathless and needy and he'd
literally do anything to just get Kaminari's hand on his dick already, but if
he can't get that right now, doing it himself is the best solution.
 
His cock is so hard it almost hurts, sometimes it throbs when he hears
Kaminari's sighs or when his breath hitches, it sounds so delicious to him and
only makes him want to move faster, pumping his hand while imagining it's
Kaminari's softer, smaller hand rather than his.
 
He imagines how Kaminari must look right now, since he's too busy to open his
eyes. He's probably blushing harder than ever, worrying at his own plush bottom
lip as he stares with hooded and needy eyes at Kirishima's moving hand, his
hard dick. Maybe his own hips move a little, humping the air, or grinding
against the mattress, or maybe he has a hand on himself already and the thought
makes Kirishima's dick throb.
 
Kirishima groans deeply as his cock twitches in his hand, wrist aching already,
but he can feel the pleasure coiling deep in the pit of his stomach. He tries
his best to pick up the speed, thumb rubbing against his slit every time his
hand jerks up. He an feel the tension in his stomach gathering at the tip of
his member.
 
"Denki, g-god", Kirishima chokes, the hand that's not on his dick coming up to
muffle his groans. "'M, ah, gonna cum…!"
 
Kirishima feels drunk off the feeling, he can't get enough, and actually wants
to continue ruthlessly fucking into his fist but suddenly, Kaminari grabs his
knee, slipping forward and trying to stop him.
 
"Wait, Eiji, wait a sec— ah, fuck…", he grits out, grabbing Kirishima's wrist
to stop him. 
 
The redhead's hips stutter up until he comes to a halt, his expression dazed as
he slowly opens his eyes, staring at his boyfriend through his red bangs that
stick to his sweaty face. He can see Kaminari, even though his vision is still
a bit blurred, but god he's so beautiful,  his blush still prominent and
dusting down from his face and ears to parts of his neck, and for some reason,
he looks just as breathless as Kirishima, even though he still — Kirishima's
gaze drops down to Kaminari's crotch — yes, Kaminari doesn't look like he has
touched himself yet.
 
"W-we can, I mean", he clears his throat. "Can we do it together? I don't think
I can hold it in any longer…"
 
Kirishima immediately groans and nods frantically, hell, now he knows why
Kaminari wanted to watch him masturbate because just the thought of the blonde
doing it almost makes him come.
 
Kaminari slowly pulls his pants down along with his underwear while Kirishima
sits up again, trying to ignore the throbbing in his dick, reminding him that
he's about to cum by a hair's breadth.
 
But he's immediately rewarded by Kaminari's cock springing free and Kirishima
almost whines as he sees the other's erection.
 
He doesn't know if the words "cute" and "pretty" are appropriate words to
describe your boyfriend's cock, but he can't deny thinking that as his eyes
take Kaminari in.
 
It's a bit smaller than his own, and flushed in a different shade than his;
while Kirishima's own dick is a crimson red down to the base, Kaminari's is
flushed a soft pink that slowly fades downwards, his whole member dripping wet
with precum and sweat. He's just as hard as Kirishima is himself and he's
careful not to get his hand back on his dick again — not until Kaminari is
ready.
 
But the blonde wraps his hand around the shaft and the whine he lets out is
enough to make Kirishima shudder violently, moaning along with his boyfriend as
Kaminari twists his hand eagerly, desperately, already looking like he could
come apart any second.
 
"God, Denki, you're so cute", Kirishima groans, his own hand finding his dick
again, pumping slower than his boyfriend so he has time to catch up. "Just look
at you, you're so cute, ah—"
 
He can hear the smaller teen calling his name wantonly over the erratic
throbbing of his heartbeat, a sweet "E-Eijirou—!" that makes his core seize up
and his muscles spasm. Kaminari calling out his full name had always been
intimate to him — usually he was just called abbreviations of his name like
Kiri in public and Eiji when they are alone.
 
Watching Kaminari desperately jerking his dick and listening to his breathless
moans and whimpers is like watching art unfold. His blonde bangs stick to his
sweaty forehead, his whole face is flushed in blotchy shades of red and his
swollen, pink lips are parted as he pants his boyfriend's name over and over
while rubbing against his slit.
 
Kirishima can't help but mimic Kaminari's movements on his dick, finally
picking up the pace to match it with the blonde's whose hips have started
twitching irregularly, hand struggling to pump in time with his desperate
thrusts.
 
"Ah, mnh, E-Eijirou", he rasps out as he throws his head back, his eyes rolling
back in their sockets, shaking and panting as his hand twitches up his dick and
squeezes hard around the head. "G-gonna cum—!"
 
Kirishima has troubles keeping his eyes open, with his own wrist and dick
aching and he's so fucking close to tipping over the edge that Kaminari's voice
alone could've been the cause of his wrecking orgasm but his hand applying
pressure to his dick only adds more feeling as he finally comes apart, cum
spurting hard and heavy between his fingers and dripping onto the sheets while
releasing a string of guttural, breathless moans.
 
He needs a few seconds to calm down and come down from his high and almost
forgot that Kaminari still has to finish. He shoots up despite every single
muscle in his body telling him to rest and hopes, hopes that Kaminari isn't
done yet, and in fact, Kirishima finished just in time to see the blonde
rolling his hips up one last time before releasing, one hand holding his shirt
up while he other is still clasping his cock, continuing to rub himself through
his orgasm as his cum shoots out, spurts of white painting his abs and hands as
he shudders through it.
 
Kirishima bites his lip hard and slumps back against the cushions as he watches
Kaminari coming down from his high, gasping for air and hands shaking.
 
Although his legs and hand feel sore, he sits up and grabs Kaminari by his
sides, pulling him into an embrace and back against the pillows as the blonde
collapses on top of him, still trying to regulate his breathing.
 
"Denki…" Kirishima search for his boyfriend's lips and Kaminari moves with him,
even though he almost seems too exhausted for kissing right now. "I love you."
 
"Mmh", Kaminari hums, pulling up his boxers that were still bunched up mid-
thigh. "Love you too."
 
Kirishima notices that his own pants are still around his calves as well and
ponders if he should pull them back on or off, but then settles on kicking his
jeans off and only pulling his boxers up. It's too hot to be wearing anything
more than underwear right now, anyway. He also notices that they haven't
cleaned up the mess they made yet, which is kind of embarrassing, so he tries
to wriggle out of Kaminari's grasp but he holds him tight against him.
 
"Don't go", he whispers, eyes closed. "Stay with me."
 
Kirishima's heart skips a beat at the way Kaminari says that but cuddling with
cum on their bodies is still kinda gross, even if it's their own stuff, so he
reaches out for the tissue box Kaminari has on his night stand (obviously) and
tries his best to clean their hands and stomachs. 
 
He isn't exactly sure how late it is and how much time they spent fooling
around, but the sun has already set and faint moonlight is coming in through
the window into the room. Kirishima slowly settles his chin against Kaminari's
head and pulls him closer, entangling their legs and reaching for a blanket to
toss over their bodies while Kaminari's arms are winded around his torso,
keeping him close. It seems like he'll sleep here tonight since Kaminari
doesn't make a move to get up nor letting Kirishima go, but it doesn't bother
him anyway. 
 
Kirishima sighs contentedly, raking one hand through Kaminari's blond hair
while the other wraps around his waist. 
 
He should also change Kaminari's bedsheets tomorrow.
End Notes
     I've been in Kirikami hell for the past few weeks and literally crave
     content, and I'm kind of sad they're considered a rarepair, they're
     so cute :'/
     Anyways, thank you so so much for reading! Please consider leaving
     Kudos/comments if you enjoyed it ahhh,, I hope you have a good day,
     stay safe!!<3
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