Posted originally on the Archive_of_Our_Own at https://archiveofourown.org/
works/11315688.
  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:
      Bakugou_Katsuki/Midoriya_Izuku
  Character:
      Bakugou_Katsuki, Midoriya_Izuku
  Additional Tags:
      PWP, theyre_high_schoolers_so_underage, Friends_With_Benefits, kind_of,
      Sparring, Nipple_Play, Anal_Fingering, Anal_Sex, Love_Confessions
  Stats:
      Published: 2017-06-27 Words: 2993
****** an after school special ******
by Birdschach, WattStalf
Summary
     AKA Bakugo is still not getting his shit together but they're kind of
     getting somewhere this time.
Notes
     We wrote another fucking collab
     Male nipple stimulation is a blessing
     If you haven't read Birdschach's "my parents aren't home" you should
     cos I imagine we set this in the same universe
See the end of the work for more notes
The exercise was simple, in theory. Hand to hand combat without the use of
quirks to assess baseline fighting capabilities. Something that Izuku Midoriya
would have excelled at against nearly anyone else in Class 1A, due to his
penchant for planning and strategy.
Except his opponent was Katsuki Bakugo. The explosive young man, who Izuku has
known since childhood, isn't quite the planner Izuku is. But his innate skill
and reflexes more than make up for it. By the end of the fight, one which was
much closer than Katsuki would have expected or cared to admit, both are
covered in sweat, and full of a mix of complicated emotions.
In the past, their fights were pure confrontation. Rivals facing off, so to
speak, though Katsuki never saw Izuku as a rival before. Now, however… with how
things have progressed outside of school, it's different. They've started
seeing each other. At each other's houses, alone, and now their fights have a
different edge to them.
Now, when Katsuki looks at Izuku, he's not just an opponent. Now, when Izuku
looks at Katsuki, he's not just someone to admire. They have their desires,
their needs, to deal with as well. And now, having just finished such a fight,
the two boys stand off to the side, still out of breath.
Luckily, they are the last two combatants, and the exercises fell at the end of
classes. The two head for home, neither speaking. Though they walk side by
side, it seems to be more out of convenience than anything else.
“Uhm… Kacchan?” Izuku asks, finally breaking the silence between them.
“What the fuck do you want, nerd?” Katsuki responds, glowering.
“That was a good match! You beat me, though.”
“Of course I did! A little training isn't enough to make you better than me,
fucking Deku! And that's with or without quirks!”
“I couldn't help but admire you while we fought. You looked so focused, and… I
guess it was like you were in your element?”
“I told you not to say weird shit like that!” Katsuki shouts. “It's not like
you look cute when you fight, or anything. That's such a stupid thing to say.”
“Wait, was that a compliment?” Even though it’s becoming easier for Izuku to
compliment his...whatever Katsuki is, he’s still never sure what to make of the
things that are said to him. Namely, when there are nice things mixed in with
the usual bitching- but, at least by now, he knows that most of the bitching
isn’t genuine.
“The fuck? I just said it was a stupid thing to say, so obviously I didn’t mean
it. When would I ever say anything weird like that? It’s just a comparison.”
“Okay, if you say so. But, you know, the stuff I said to you wasn’t that
weird.”
“So, what? I’m the weird one?”
“I never said that!” At times like this Izuku, is torn between getting nervous
that he’s really upset Katsuki, and laughing at how ridiculous the argument as
become. “Besides, you just said you didn’t mean it, right?”
“Would you just shut up?” By now, they’ve reached his house, and Izuku waits,
wondering if he’s going to actually come out and say anything this time. “What?
What are you staring at?”
“I’m not staring, I was just-”
“Waiting for me to invite you in? Not gonna happen. Just go on home, alright?”
“If you say so,” he replies, turning. It’s not a big deal, really. Perhaps
he’ll try to get some time alone with Katsuki, or maybe…
“Ugh,” he hears the boy behind him groan, opening the door. “Do I have to do
everything myself? Worthless Deku! Are you coming in or what?”
Grinning to himself, Izuku turns back around, following his friend (?) inside.
The house is slowly regaining the familiarity it held when Izuku was younger,
and he and Katsuki were closer. Whatever they are, the two spend more time
together now than they have in years.
“It’s really strange how much is different in here, but so much is still the
same,” Izuku says, growing thoughtful. “It's sorta like us, isn't it?”
“Damn it, Deku, I didn't invite you in so you could stand around and
philosophize!”
“Oh, you invited me in, then?”
“Fuck you, I didn't say that. Anyway I wanted to fight you again. Our match was
too close earlier, but that was just a fucking fluke, okay? And I wanna make
sure you know that!”
“Well, it could be a good opportunity for me to get some experience in combat,
and Kacchan is incredibly tough. Not to mention his reflexes, easily topping
our class and even some pro heroes… but, at the same time, it's not a
controlled situation and one of us could hurt the other. There are other things
we could do together tha-”
“Fucking stop with the muttering, Deku! Such an annoying habit, even if the
look on your face is kinda…” Katsuki says, before trailing off. “Shit! It's
just annoying. So stop.”
“Oh, I was just thinking about whether we should fight or not, sorry, Kacchan.”
“Nothing to think about, nerd, it's on!” Katsuki shouts, already marching
towards his back door. The house doesn’t have much of a backyard, but it’s
certainly enough for a small fight. Once outside, both fall quiet. They face
off, each falling into an easy stance, hoping to facilitate whatever movement
the other might force them into.
Not one to wait around, Katsuki is the first to move. Whether it’s by nature,
or whether he is trying to intimidate, his usual right hook is accompanied by a
harsh shout. Izuku, however, has not only been observing Katsuki for years, but
fought with him just hours ago. This leading move is no surprise, and is easily
parried. But the green-haired boy knows the leading hook isn’t what he should
watch out for.
What he dreads is what comes next, the less predictable side of a fight with
Katsuki. And sure enough, as soon as he is balanced enough, Katsuki launches a
sweeping kick at Izuku’s legs, hoping to knock his friend off balance. With a
startled yelp, Izuku jumps, narrowly dodging the kick. When he lands, he goes
on the offensive, lunging at Katsuki and managing to catch him with a simple
lariat.
It is more of a glancing blow than anything else, and causes Izuku to stumble.
With his balance off, he falls, pushing Katsuki as he does. The two of them end
up on the ground, with Izuku on top of Katsuki. And, as it is, that's really
the only push they need to get things where they're really supposed to be
going, further stirring up feelings both had to ignore while going at it in
front of the class. Now that there is no audience, now that the two of them
have a house and a bit of time to themselves, they give in.
“That doesn't mean you won,” Katsuki says, almost breathlessly, his face
flushed from more than exertion. “Got it? It's just a fucking fluke, so don't-”
Izuku simply leans down, muffling Katsuki with his lips, and the boy only
attempts to protest for about half a second before he whines softly, pushing
his body up, grinding against Izuku. If only either of them could just come out
and say this is what they needed, but somehow, it's easier this way, skirting
around the subject. Someday, they're going to have to figure this out, but that
day is not today.
Today, neither of them want to get into the intricacies of whatever this might
be. Instead, Izuku pulls back, and gets up. Katsuki follows, and walks back
into the house, with Izuku only steps behind him. They make a beeline for
Katsuki’s room, and as soon as they're there, Izuku lunges at Katsuki, pressing
his lips to Katsuki’s.
Given the chance, Katsuki would likely begin mouthing off again, but with Izuku
on him, unbuttoning his jacket, then his shirt, all while keeping their lips
locked, Katsuki has no chance. He doesn't know what's possessing him to be so
forward, but when Katsuki shrugs his jacket and shirt off, Izuku is quick to
break the kiss, moving his lips down his chest. This causes Katsuki to squirm,
but even with his mouth free, he doesn't attempt to protest.
That's when Izuku’s lips find one of his nipples, his tongue flicking out over
it experimentally, and earning something like an, “eep!”- but, of course,
Katsuki would never say “eep!”- from him. Even if he did happen to say it, he
recovers as best as he can, breathing, “What the fuck, Deku?”
“What, Kacchan? I didn't do anything,” Izuku says, pulling back only slightly
and going for an obviously false denial, much like what Katsuki uses on him
from time to time. But he quickly lowers his mouth once more, this time taking
Katsuki's nipple between his lips.
It doesn't take much for him to make Katsuki whimper again, but Izuku makes no
move to stop. Instead, he reaches down, cupping the bulge in Katsuki's pants,
holding on to whatever momentum has him acting so aggressively. He looks up at
him with wide, innocent eyes, a complete contrast to his devious behavior.
Sucking lightly, and groping at the other boy, he leaves Katsuki an absolute
mess, nearly trembling from the new sensation. As much as he's sure he'd love
to give him hell for this, each time he tries to speak, his voice breaks, going
silent or fading into pathetic moans.
“You're being awfully quiet…” Izuku says, his tone vaguely teasing.
“W-What the fuck, Deku? What are you doing?” Katsuki answers. “Why the hell
does it feel this good!? You and your weird shit, I want you to stop this!
Right now!”
So, Izuku stops. He pulls back, and raises his hand, looking at Katsuki with
those damn innocent eyes. But beneath his gaze there's… something else. Almost
a challenge, daring Katsuki to resist. It's enough to drive him mad. How the
fuck is he supposed to resist this anyway? In just a matter of seconds, he's
squirming, grinding against Izuku’s hand, which he hasn't moved yet.
“Just get on with it,” he mutters, glancing off to the side.
“If that’s what you want,” teases Izuku, earning himself an indignant grunt in
response. This time, he flicks his tongue over it, settling into a quick
rhythm, until Katsuki is positively melting, bucking his hips almost
mindlessly, trying to get more friction from Izuku’s hand. He’s so desperate to
get off at this point that he can’t be thinking clearly, but Izuku knows just
how pissed he’ll be if he ends up getting off before he’s even gotten out of
his pants.
“Alright, Kacchan. I think you've had enough, right?”
“Yeah fucking right! As if I enjoyed that! Why don't we do something normal
now?”
“Alright, Kacchan,” he murmurs sweetly, straightening up and starting to get
out of his own uniform. “Whatever you say.”
While he’s undressing himself, Katsuki is fumbling with his own belt and with
his button, and then hastily stepping out of his pants, nearly tripping himself
in the process. If Izuku didn’t know better, he would think that Katsuki wanted
him to know just how eager he was. Finally, Izuku lays back on his friend-
boyfriend-rival-lover-whatever’s bed, hooking his arms under his knees,
spreading and raising his legs. Katsuki takes one look at him like that and
shudders, nearly pulling the drawer out of his dresser as he yanks it open,
looking at the lube one of their classmates gave him on his last birthday,
meant as a joke gift- though it’s certainly come in handy as of late.
He opens it, scooping the slick substance onto his fingers. It’s always a
surprise, the gentle way he goes about this part. Typically, he is on the
receiving end of things, and Izuku is always gentle with him, but whenever
Katsuki is the one giving, he doesn’t bother trying to act too tough, at least
not in his actions.
So, as his finger presses against Izuku, it’s gentle, almost teasing. Slowly,
Katsuki begins to push, his finger working its way in quite easily given how
lubed up it is. Even so, the boy lets out a whimper, somewhere on that fine
line between pleasure and pain that comes with the territory.
“You alright, Deku?” Katsuki asks, his tone one of genuine concern. “I mean, of
course you are! This is nothing!”
“I’m fine, Kacchan… it feels great, actually,” Izuku assures him, and it is
enough for Katsuki to continue his efforts. Before long he works a second
finger into Izuku. This earns him another whimper, a sound he can never get
used to. This time, though, he bites his tongue, not wanting to ask Izuku if he
is alright again.
Instead, he begins scissoring his fingers. The first time, it is slow, gentle,
spreading Izuku from within. But with each time, he picks up some speed. Before
long, Izuku is practically going to pieces.
“P-please, Kacchan... “ he mutters, “I’d like it if you… did more…”
“Fucking hell, Deku, since when are you so needy?” Katsuki asks, but there’s a
grin on his face that offsets his angry tone. “Fine, whatever, if you need me
to fuck you that bad.” He pulls back his fingers, leaving Izuku feeling
achingly empty, but that's only until he presses his cock against him, and he
pushes into Izuku without hesitating- too much- and they both moan in unison.
Katsuki looks a little embarrassed to have done that, but his desire wins out
and he isn't able to keep from pushing the rest of the way in, letting a few
more moans slip out, here and there.
He begins to thrust only after waiting to make sure Izuku is used to him,
though like hell he’s ever going to admit that's what he did. Katsuki manages
to keep a steady rhythm, despite how close Izuku got him earlier. That is,
until the green-haired boy lets out a whimper, one which Katsuki thinks sounds
pained. His rhythm falters, and he finds himself filled with worry.
“You okay, Deku?” he asks, but realization crashes over him. What is he doing,
asking a question like that? “Because if you’re not, that’s pathetic! You
should really be taking notes here, nerd. You could learn a thing or two from
me!”
“It’s good, Kacchan… It doesn’t hurt, it feels good,” Izuku manages, trying his
best to suppress any further moans or whimpers.
“Why the fuck would I care if it hurts!? Like I was saying, it would only feel
bad if you were too much of a nerd to take it. I don’t worry about it, or
anything, so don’t think I do!”
“I love it…” is all Deku says.
“What the fuck!? You can’t say a thing like that!” Katsuki responds, and by now
there’s no semblance of his earlier rhythm. By now, he’s frantic, thrusting
into Izuku without regard for his limits. It’s a great feeling for the both of
them, with both Izuku and Katsuki desperately trying to hold back from their
climaxes.
However, they’ve both teased the other too much, and it's only a matter of
time, and when Izuku looks up with his lashes lowered and his face flushed, and
gasps out, “I love it, I love…” that's all Katsuki can take me.
“Me too,” he groans, “I love you- it- fuck!” as he shoots off inside Izuku. He
only wears a panicked expression for a brief moment, before slipping into one
of sheer bliss, and Izuku wants to call him out on that, he really does, but
he's so close now, and then he's right there, giving into his own pleasure,
spilling his seed against his stomach.
“Kacchan…” he breathes, after a few peaceful moments. Suddenly, the other boy,
who has kept his head low, grows tense and looks up quickly with a familiar
scowl.
“Not a goddamned word, Deku. Seriously. I'll fucking blow your ass up right
now, got it?”
He can't really say he expected anything else from Katsuki, so he just smiles
and says, “Alright, Kacchan, whatever you say.”
Pulling out, Katsuki grumbles, “Sometimes you sound really fucking snarky when
you say that kind of stuff, you know?”
“What do you mean?” He does his best to sound innocent, but Katsuki’s scowl
only deepens.
“Just like that! You think you're so slick, but I know how you are, Deku. Don't
think that you can throw your weight around in front of me, just because
we...because we...just don't, alright?!”
“I know,” he says, and this time, his voice is more sincere, or at least
sincere enough to satisfy Katsuki. “This doesn't mean anything, like you always
say.”
Huffing, Katsuki doesn't bother responding as he sets to cleaning himself up
and searching for his discarded clothes. Though a part of him would rather lay
here, in this room, on this bed, taking in Katsuki’s scent and relaxing in his
afterglow, Izuku knows they don't have much time left alone together, and that
he really needs to get home before his mother starts to worry. Sighing, he sits
up and gathers his clothes, grateful that his hair is perpetually messy anyway,
that he can credit any sweat to having a particularly trying day at school.
Katsuki at least has the decency to walk him to the door when they're both
decent.
“I'll see you tomorrow,” he says, when he's on the way out the door.
“Whatever, Deku,” replies Katsuki. “Don't look forward to it too much, or
anything.”
“I won't,” he says with a smile. “You know, I love you too.”
Katsuki’s eyes widen and his stammers for a moment before he's actually able to
speak. “What the fuck?! You can't just say something like that, Deku! I'll kill
you, you-”
But Izuku closes the door before he can finish his threat.
End Notes
     Hey, hey you! Do you like BakuDeku? Well, then, you should do
     BakuDeku week, from July 15th to the 21st!
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