Posted originally on the Archive_of_Our_Own at https://archiveofourown.org/
works/14155944.
  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:
      Iida_Tenya/Midoriya_Izuku
  Character:
      Iida_Tenya, Midoriya_Izuku, Ashido_Mina
  Additional Tags:
      Locker_Room, Locker_Room_Sex, Now_kiss, resident_sexpert_Mina_Ashido,
      Oral_Sex, Making_Out, Snowballing, semen_-_Freeform
  Stats:
      Published: 2018-03-31 Words: 2970
****** The Resident Sexpert ******
by MrsArataka
Summary
     "Mina claimed she watched their training sessions to “keep an eye on
     her competition,” and as an aficionado of heroes and their quirks,
     Midoriya understood intense observation of quirk users in the name of
     knowledge. Still, he had a suspicion there was more to it.
     “It’s not just me," Mina defended herself, "you two watch each other
     pretty carefully when you’re stretching before and after workouts." "
     Mina likes to hang out and watch Iida and Midoriya's after-school
     workout sessions, but one day she makes a comment that Midoriya can't
     seem to get out of his head...
Notes
     This fic was written for my friend Liz!
See the end of the work for more notes
“So when are you two going to just make out?!"
In the last few weeks, Midoriya and Iida had formed a habit of working out
together after school. As the warm spring days stretched into early summer and
evenings grew longer, the boys found the best way to take advantage of the
extra sunlight was spending the added time working themselves into peak
physical form. Once classes ended and they completed their after-school duties,
the two would follow Iida’s strict regimen of quirk-perfecting exercises for
hours until both boys were exhausted and their muscles ached.
At first, Midoriya hardly registered Mina’s question. Out of instinct, he
nodded, a knee-jerk reaction by someone not listening to another person seeking
a response to a question. But it didn’t take long for the gears to start
turning and for Midoriya to, once fully comprehending her question, break into
a full-on flop-sweat.
Mina smirked - she lived with a smirk on her face. She gave Midoriya a playful
nudge.
“C’mon,” she goaded, “you guys have some crazy energy! Especially during that
sparring session earlier when you pinned Iida down?" Mina let out a long
whistle, fanning herself.
Midoriya remembered overcoming a potential blow from Iida by sweeping his legs
and rolling on top of him, pinning his friend to the ground. The look of
genuine surprise on Iida's face as his head hit the grass and Midoriya's
surprise at his successful plan made both of them practically giddy with
excitement.
“Th-that was just..." Midoriya felt his cheeks reddening. "We were just caught
up in the heat of the moment is all..."
 Crap.
"I-I mean, there wasn't any heat between us or anything!"
Mina raised her eyebrows at Midoriya, grinning. She leaned against the fence,
watching Iida do some post-workout stretches.
After hours of intense exercise, they both did some post-workout stretches.
Midoriya had finished his workout a few minutes prior, but waited until Iida
had run a few cool-down laps around campus and did his own round of post-
workout stretching before heading to the showers.
“When did he take off his shirt..?” Midoriya wondered aloud, blinded by the
glistening sweat covering Iida’s sinewy frame.
"He takes off his glasses while he works out, huh..." Mina looked over her
shoulder at Midoriya. "Don't you think it's cool when guys who normally wear
glasses suddenly take them off?"
Midoriya could feel his face burning hot enough to give Todoroki's quirk a run
for its money.
“Y-you sure keep a close eye on Iida when he’s working out…”
Mina claimed she watched their training sessions to “keep an eye on her
competition,” and as an aficionado of heroes and their quirks, Midoriya
understood intense observation of quirk users in the name of knowledge. Still,
he had a suspicion there was more to it.
“It’s not just me," Mina defended herself, "you two watch each other pretty
carefully when you’re stretching before and after workouts."
Midoriya's heart pounded in his throat. “W-well, sure, it’s like Iida says,
monitoring each other for proper stretching form is important s-so we don’t
hurt ourselves. That’s all it is.”
This didn't sound like the kind of research needed to pass a hero course. Or
frankly, like research at all.
“Ashido! Midoriya!I’m finished with my post-workout stretches!”
Midoriya turned around, and unintentionally grimaced.
Adonis. Hercules. Achilles. Put exhaust pipes on the legs of the most striking
men of antiquity, and you had Iida. Towering over both of them, Midoriya found
himself eye-level with Iida’s chest, sparkling in the afternoon sun, and found
himself unable to look away.
"Iida!" Mina greeted him with enthusiasm, snapping Midoriya from his daze. "You
two were really fired up this afternoon!"
Iida smiled. “You think so?” His smile rivaled the light of the sun. “Well, my
success wouldn’t be possible without the help of Midoriya.”
Midoriya’s face burned like a thousand fires. Unfortunately, Iida noticed.
"Midoriya!"
Iida gesticulated to his classmate’s scorched cheeks.
“Y-y-y-y-yes?!"
Mina snorted.
"Your face is bright red!" Iida yelled, without any pause, his hands waving
frantically. “Did you forget to wear sunblock during your training session?
Even if it’s late, the sun’s rays are actually strongest in the afternoon! You
have to be mindful of your exposure to UV rays!”
Midoriya tried desperately to hide his face in the collar of his shirt, but to
no avail.
"N-n-no, it's just-"
"Are you overheated?" Iida carried on. "Maybe it would be best if you took a
cold shower!"
Mina stifled laughter, and Midoriya knew if this kept up he'd actually die of a
heart attack.
“Y-yep, good idea!” Turning on his heel, Midoriya kept his face covered with
one hand, and waved over his shoulder with the other. “S-see you in the showers
- crap! - I-I-I mean, see you!”
Unable to control herself any longer, Mina broke into a fit of giggles.
 
===============================================================================
 
“Are you sure you’re feeling alright, Midoriya?" Iida asked as they left the
showers.
“Hm? Oh, yeah…” Midoriya replied, and meant it. Hot water and steam always
managed to soothe his nerves. Still, he wondered if telling Iida about his
tangled thoughts courtesy of the seed planted by Mina would do more harm than
good.
“…Can I ask you something, Midoriya?” Iida chimed in.
Midoriya turned to look at Iida, towel-drying his perfectly-trimmed head of
hair, beads of water still rolling down his pecs.
“S-sure,” Midoriya responded, only slightly distracted.
"Did Miss Ashido ask you about our training session too?"
Midoriya felt his stomach drop through the floor.
“…’Too’?”
"Well..." Iida trailed off, reformulating his sentence, "it was less about our
training session, and more about-"
After a pregnant pause, Midoriya could hear Iida gesticulating even though he’d
briefly turned away.
"Midoriya, I'd like to make it clear - what I'm about to say is summarizing
Miss Ashido's words."
 Gulp.
“O-Okay..."
"Miss Ashido says that... that we have energy."
When he turned in surprise, Midoriya caught Iida’s attention, and they locked
eyes. He was surprised to see a hint of a blush in Iida’s cheeks.
So he wasn't the only one she'd talked to about this.
“I-is that so?”
Iida gave a sober nod. "I respect Miss Ashido’s honesty, however, she sometimes
says more than might be appropriate in a given situation…”
Iida's honesty came from a place of maintaining order. Meanwhile, Mina's
honesty came from a place, frankly, of sewing chaos. It made sense that their
polar opposites of frankness would create friction.
He let out a nervous chuckle. "Y-yeah, Ashido sure says some crazy stuff
sometimes.” As the tension in his shoulders unwound, he let out a sigh. Maybe
he could could open the point to discussion, after all.
"Funny you mention that," Midoriya said,” she actually mentioned it to me,
too."
It wasn’t like he’d never considered it. He valued Iida’s friendship and the
time they spent together, of course, and he was undeniably good-looking. It was
possible Iida had similar thoughts, but he wouldn’t dare to ask a question like
that. But that’s all these feelings amounted to, just an appreciation of their
strong bond… right?
"What kind of ‘energy’ do you think she was talking about?" He couldn’t help
but chuckle, remembering the way Mina ogled Iida as he stretched. “I mean, it’s
Ashido, so”
"-Sexual."
Midoriya froze, the towel around his damp hair slipping to the ground. He
turned over his shoulder to look at his friend.
"S-Sexual..?"
Iida stared at Midoriya with an unmoving gaze, until the pressure became too
much, and Midoriya looked away.
"W-well..."
"Midoriya."
Looking back to his friend, he noticed Iida had closed some of the distance
between them, and suddenly, Midoriya felt incredibly small.
"You're thinking about it too, aren't you?"
He felt his cheeks burning.
“Wh-wh-what do you mean?"
"If Miss Ashido is right."
Midoriya’s heart shot into his throat.
“I’d like to hear your opinion, Midoriya,” Iida said, his tone careful.
"Iida..."
Midoriya’s back pressed into the wall of the locker room, engulfed by his
friend’s presence. As Iida moved in, Midoriya could sense his determination.
“Midoriya," Iida’s voice had a raspy, harsh tone. Midoriya examined Iida’s face
closing in.
He knew Iida well enough to pick out the moments when his friend had trouble
expressing himself. Clearly, this was one of those rare moments.
"Tell me if you've considered it before,” Iida pleaded. "I'd appreciate your
discretion.”
"W-well, uh..."
It was like a BL manga. Not that Midoriya had much experience with those - he’d
only read a handful of pro-hero doujinshi here and there, and only for the art,
of course, after all many of the best professional manga artists started in
porn…  But from what he could piece together from those clips he'd read in
secret, he thought he knew how this was going to go - if this would even amount
to anything.
Iida was bigger than him - that much was obvious. And now, it seemed like he
was making the first move. Given these simple facts, that would put him in the
top position. Still, even though his friend was determined in all other areas
of life, he’d never thought of Iida as a traditional “top”…
Midoriya straitened himself up, returning Iida’s gaze with an almost aggressive
look. It was like furrowing his brows at his friend broke some of his resolve;
Iida’s brows softened, eyes widening. He suddenly looked afraid, like a big dog
who had just been punished. Finally, Iida let out a resigned sigh, his
shoulders drooping.
Maybe Mina was right. There was enough tension, at least, to get them this far.
But now Iida, who made the first move, didn’t have the fortitude to follow
through. How, then, did they expect this ship to sail?
Sometimes, if you really want something, you have to get it yourself. Midoriya
knew that better than anyone. And the towel tenting around his waist was just
the push he needed. 
He pulled Iida down into a deep kiss, clumsily slamming their lips together.
Iida went rigid in surprise, but unwound the tension in his shoulders with a
sigh, and his hands fell on Midoriya’s body.
As Iida's hands trailed over his body, the soft palms of his enormous hands on
his skin, Midoriya felt a sudden wash of dread. This was a mistake. He’d taken
advantage of the weird tension built up after a friend’s off-color comment,
maybe they should slow down, at least until-
Briefly coming up for air, Iida sighed into his neck.
"Midoriya..."
He shivered from head to toe.
Then again.... why pass up an experience like this...
For whatever reason, Midoriya suddenly found himself self-conscious about the
placement of his hands. Really, he felt self-conscious about where to put
his... anything. As he froze up, the familiar shame crept over him, and Iida
sensed his discomfort, briefly pulling away.
"Is there something wrong?" Iida’s furrowed brow had softened, a good look for
his famously-uptight friend.
Midoriya’s jaw had never felt stiffer.
"Uh, n-no, it's just-" Midoriya strung words together in his mind, but the
sentences dissolved into sounds the minute he tried to voice them. When he
finally found the words, he tried to maintain an even, rational tone.
"I-I mean, it's just really sudden right?? Are we really gonna do something
like this just because Ashido said we looked good together?! M-Maybe she read
some BL novel and she's just been trying to get us to do something because she-
"
"Midoriya, can I make a confession?"
Water dripped from Iida's hair, over his brows. Mina was right - without his
glasses, the usually good-looking Iida somehow looked ten times more
attractive.
"It's not... just something she brought up without reason."
"...What?"
Iida grunted, bothered. Midoriya could see his cheeks turning pink.
"It's not like I had some nefarious reasoning behind asking you to be my
workout partner. This didn’t come up until fairly recently."
Iida chomped his lower lip.
"M-Miss Ashido..." Iida stuttered uncharacteristically... "She has a keen eye
for these things. She picked it out early on in our training sessions. Frankly,
I don't have much experience in this area, but she gave me some ideas on what I
should do."
Midoriya’s head spun. How long had they been conspiring?
"Like... what?"
Suddenly the energy surrounding Iida changed. His eyes became serious.
"This."
Before he could say or do anything or react with anything beyond a yelp of
surprise, Iida had his hands tangled into Midoriya’s hair, pressing him against
the wall with his body and slammed himself once again to his friend’s mouth.
The shame was immediately replaced by an intense, primal hunger. And judging by
the way Iida kissed and bit him, he wasn’t the only one.
Heir to a line of heroes, Iida had lived a privileged, comfortable life.
Despite the time he put into training his body to be firm and strong, his skin
was smooth, broad shoulders like silk, the soft skin trailing down his back to
his firm butt. Midoriya squeezed, feeling Iida go rigid up in his grip, and a
hand reached down to his waist and squeezed back, the skin giving under Iida’s
fingertips. The hand still in Midoriya’s hair tugged with more force than Iida
probably realized… not that he would complain.
With that firm tug, Midoriya let out an unexpected moan. He seized up in
embarrassment, and Iida pulled away for a moment to give him a curious look.
“M-Midoriya..?” His tone was less “are you okay” and more “what the hell was
that?” But Iida was far too polite to ask the latter.
“S-sorry,” He winced, cheeks reddening, and the question was quickly put to
rest.
In a sudden burst of inspiration, Midoriya grabbed Iida by the shoulders and
guided him towards the locker room benches, into a seated position.
With his friend seated in front of him, he felt less restricted. Besides,
having Iida sitting down would make what he was about to do much easier.
On his knees, Midoriya pulled the towel away from Iida’s waist, and came face-
to-face with-
 Oh.
Some might call Iida’s cock absurdly huge, but given his size, it didn’t shock
Midoriya too much. As it sprang forth from the towel, Midoriya wondered if he
would be able to take the whole thing into his mouth. Of course, he was no
stranger to a challenge.
With one hand on Iida’s hip, Midoriya curled his fingers around the base of his
friend’s thick cock. Without announcing himself, he took the tip into his
mouth, and felt Iida shudder.
“M-Midoriya!” Iida reached out and gripped his friend’s hair again, squeezing
tight on his locks and tugging on his scalp.
He took that as a good sign.
Working his tongue up and down the shaft, he used those firm or gentle hair
tugs and his friend’s loud moans as a guide to tell him whether he was doing a
good enough job. His hot mouth lapped at the tip of his penis first, in quick
circular motions, and then his tongue came out and pressed against the shaft as
he made a few curious trips from tip to base. Noting how Iida whimpered and
panted, Midoriya concentrated on different areas, occasionally taking the whole
thing into his mouth, while Iida panted.
“O-Oh,” his friend whimpered pitifully, “I’m…I’m going to-”
 Surprised by the feeling of hot liquid filling his throat as Iida shuddered
and moaned, Midoriya pulled away at the most inopportune moment. He pulled
Iida’s cock out of his own mouth, but it wasn’t done - the hot liquid continued
to spurt forth, all over Midoriya’s hair and face. Shuddering and whimpering as
he emptied the last of his load on his friend, Midoriya felt the still-firm
shaft pulsing as Iida panted, hands loosening their grip.
Releasing his hand from the shaft base, Midoriya reached up to feel the hot
liquid in his hair clump together, remnants of it dripping down his face. He
heard Iida gasp, and looked up.
Although still breathless, Iida looked mortified. He covered his mouth,
steadying his breath.
“O-oh no,” Iida panted. “M-Midoriya, I’m so sorry, I didn’t mean to-”
Midoriya opened his mouth to speak, but more of Iida’s cum dribbled out, down
his chin. As he watched, Iida’s already-scarlet face deepened in color.
Midoriya furrowed his brow, cum running down his forehead.
For a mess like this, there was only one good way to clean it up.
Standing and fixing his gaze on Iida, Midoriya gripped his friend’s chiseled
jaw. Squishing the soft skin of Iida’s cheeks between his fingers, the helpless
Iida could do nothing but watch as Midoriya slammed his open mouth against his.
Forcefully, he jammed his tongue into his throat, transferring cum into Iida’s
mouth. Iida struggled only for a moment, before realizing what was happening,
and loosened the tension in his body.
Iida reached up and squeezed his friend’s law, pulling him deeper into a damp
kiss, pleading for more. As they pulled away, the trail of combined semen and
saliva formed a bridge between their soft lips, until Midoriya straightened up
to his full extension. Iida stared up at him, dumbfounded, saliva and cum
dripping down his chin. Midoriya had never seen his eyes wider.
Iida gulped, surprised, swallowing the load deposited by Midoriya into his
throat.
“I…” Iida stammered, as they pulled their hands back from one another. He
reached up to wipe the trail of spit from his jaw with the back of his hand.
“…Thank you.”
It was so matter-of-fact, after something like that. But somehow, so Iida.
Midoriya smiled, gulping down what was left in his own mouth. “Y-yeah,” he
returned with the same cracking voice “…sure.” He took the towel from around
his waist, and wiped his chin and hair.
“Sh-should we… should we thank Ashido?” Iida suggested, bashfully.
Midoriya paused, looking at his friend in surprise, before bursting into
laughter.
End Notes
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