
Posted originally on the Archive_of_Our_Own at https://archiveofourown.org/
works/12672156.
  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
  Additional Tags:
      Bakugou_Katsuki_-_Freeform, midoriya_izuku_-_Freeform, teacher!izuku,
      Student!Katsuki, Teacher-Student_Relationship, Bottom_Bakugou_Katsuki
  Series:
      Part 2 of Hiding
  Stats:
      Published: 2017-11-09 Words: 2475
****** Science Lab ******
by riversmoon416
Summary
     Izuku and his student Bakugou fool around in a science lab
Notes
     The support for Homeroom was honestly shocking, thank you so much for
     all the kudos and comments! I definitely wouldn't have continued
     without you guys, so thank you. Hope you enjoy!
     If you haven't read Homeroom yet, this is kind of a continuation but
     you don't need to read it beforehand. Just know that Bakugou hid
     under a desk and gave Izuku a blowjob during class.
See the end of the work for more notes
The almost clinical scent of chemicals wafted around Izuku as Bakugou pressed
him into a hidden corner of the science lab. Biting nips stung Izuku’s mouth as
he felt hands grab at his clothes.
“Ka- Kacchan, we shouldn’t be here. We’re too close to the hallway, someone
could hear!”
Bakugou pulled back and gave Izuku an annoyed glare. Voice harsh, he replied
simply, “Not if you shut up,” and crashed their lips back together.
Izuku was grateful for the almost-darkness surrounding them. The lights were
completely turned off, leaving them with only the glow from the hallway
streaming in. It was near the end of the day and he knew no one was going to
use the room, but the danger of discovery was a constant weight on his mind.
Admittedly, that was also part of the fun.
Wet heat from Bakugou’s tongue stroked the inside Izuku’s mouth and he
whimpered as he imagined that tongue touching other places. Anticipation
radiated throughout his body, arms shaking as he drew Bakugou closer. He felt
their teeth clink together as Izuku opened wider, welcoming the intrusion.
Colors burst across Izuku’s closed eyelids when he felt a knee work its way
between his legs. The slight circular motion against his hardening cock drove
him crazy as he spread wider, begging for more. He let out a choked groan when
Bakugou rubbed harder, faster, intent on making him scream. Raising on his
toes, he moved farther up Bakugou’s leg in search of friction.
Izuku inhaled sharply and broke away, feeling lightheaded from the lack of air
supply. He looked down at the smug glint in Bakugou’s eye. A slant of light
from the window near them caught the drops of sweat slowly dancing down the
side of his face. He gulped, wanting to lean down and lick the salt from his
skin. Izuku watched in fascination as Bakugou’s beautiful red eyes were
swallowed by black, his pupils dilating from arousal.
A sense of pride washed over Izuku. He had this beautiful boy all to himself.
Diving back in, Izuku grabbed the back of Bakugou’s neck and fell against the
wall. Quick, panted breaths warmed the air between them as Bakugou worked their
zippers down. Izuku keened when he felt a large hand finally touch the
sensitive skin of his dick. Instinctively, he grabbed the first thing he could
and yanked. A loud hiss near his ear alerted him to the fingers pulling
Bakugou’s hair, tipping his chin back. This time, he let himself languidly
slide his tongue along Bakugou’s exposed neck, reveling in the tangy sweetness
there.
Bakugou released Izuku’s dick from his pants and began to jerk him off without
warning.
“Fuck,”Izuku grunted, feeling himself writhe against the hard surface of the
wall. Fireworks exploded all across his skin, burning him red. He let his hands
wander up and down Bakugou’s forearms, corded muscle straining with the effort
of his rapid movements.
Shivers wracked through Izuku as Bakugou played with the tip, twisting slightly
on the upstroke. Groaning, Izuku reached down and slipped past Bakugou’s
waistband. It wasn’t enough for him, he needed this boy now.
Smooth, hot skin hit Izuku’s palm and Bakugou collapsed against him with a
shudder. Precum slicked his hand as he lightly scraped his nails along the
ridge. Everything Bakugou surrounded him: his smell, his heat, his body as it
caged him in. He felt high and he never wanted to come down.
Izuku pushed Bakugou’s pants down, riding low on his hips as he brought their
dicks together. The movement shook Bakugou out of his stupor and he started
gliding his hand over Izuku, again. Heads bowed forward, Izuku rested his cheek
against Bakugou as they drove each other closer and closer to the edge.
Saliva pooled in Izuku’s mouth, lips open in what he knew was a blissed-out
expression. His tongue swept out to catch whatever was going to drip down, but
it caught Bakugou’s attention. He turned his head, still rested against
Izuku’s, and smirked.
“Look at you, you’re a fucking mess,” Bakugou mocked teasingly, gruff but
steady. Aside from the redness spreading across his face and neck, he looked
like he was barely affected. Izuku, annoyed, decided to do something about it.
Sliding his arm around Bakugou’s waist, Izuku slowly dragged his fingers down
the crack of his ass. Bakugou growled and squirmed to get closer. It had been a
while since Bakugou let him do this and he fully intended to take advantage.
Izuku maintained his fast pace over Bakugou’s length even as he ran his fingers
up and down along the seam of Bakugou’s ass. He watched Bakugou, enjoying his
face twist in frustrated arousal. The dual stimulation drove his erratic hips
back and forth, unsure where he wanted the attention. His hand slowed down over
Izuku, but Izuku didn’t care. He wanted Bakugou to beg for it.
Bakugou leaned forward and bit Izuku’s lip, hard and punishing. He snapped,
“Hurry the fuck up, just do it already.”
Laughter almost burst out of Izuku’s chest. Normally he would be intimidated by
Bakugou’s murderous glare, but this time he only felt a sense of satisfaction.
He let his fingers slip in and smiled when Bakugou’s voice caught in his
throat. Izuku ran a finger over the hole, massaging the ring of muscle and
pulling away when it almost went in. He licked the shell of Bakugou’s ear
before crooning, “You took your time in homeroom, now it’s my turn.”
Swearing, Bakugou dug his nails into Izuku’s hip and yanked him closer. He
swatted Izuku’s hand away from his cock and wrapped a large hand around both of
them. Izuku groaned, loving Bakugou’s velvety skin rubbing against his.
Izuku let himself feel the pressure building, wordless noise bubbling from his
mouth. He continued to run the pad of his finger over Bakugou’s opening,
waiting until the anticipation wore off.
After rubbing circles over his asshole for what seemed like forever, Izuku
suddenly entered him dry.
Bakugou released a shocked cry, pain and pleasure furrowing his brows. Izuku
stopped, letting him adjust and breathe. He knew Bakugou loved it rougher,
loved the burn, but he didn’t want to move too soon. Peppering Bakugou’s
jawline with small bites, he distracted him until he felt a nod that he could
continue.
Slowly, Izuku pushed up to his knuckle and stroked Bakugou’s inner walls.
Trembling breaths heated Izuku’s neck as he began to move faster, rim sucking
him in even further. He thought he would get used to it eventually, but the
snug warmth when he sunk in to Bakugou always shook his system to its core.
Whispers of Kacchan, so tightand so goodalways spill out of him uncontrollably
and Bakugou would hit him, call him fucking embarrassing, but rock back onto
him like he couldn’t get enough.
Izuku withdrew carefully and Bakugou grunted, grinding back to chase his hand.
He snarled and opened his mouth in what Izuku assumed would be anger, but was
suddenly cut off with a choking noise when Izuku wove their fingers together to
help him stroke their cocks.
Through stuttered breath, Bakugou said, “I’m not gonna f-fucking break,
dumbass. I can take it.”
Izuku silenced him, pressing their open mouths together. It was more just
breathing into each other, tongues wetly sliding against teeth, than a kiss.
Fingers glided up Izuku’s front, ripping his buttoned shirt out of the way.
Patterns were drawn across his torso and along his ribs, doing nothing to
soothe his overheated skin. A yelp squeaked out when his nipple was twisted and
he felt more than heard Bakugou’s laugh against his cheek.
It was intoxicating being near Bakugou, but Izuku knew they had to hurry; he
wasn’t sure how long they had until Bakugou had to go back to class.
Izuku let go of their cocks and replied, “I just needed more of this. I want to
open you up properly.”
Reaching back, his fingers slid in much easier with the help of their precum to
his relief. Bakugou sighed, eager to be filled up again. With two fingers in
now, Izuku moved faster and began to scissor him open. Needing more room, he
pushed Bakugou’s boxers to the floor, the clink of his belt echoing around
them. A hand smacked the wall beside him as Bakugou opened his legs wider. He
began to thrust back fully, fucking himself on Izuku’s fingers.
After Izuku added a third finger, he pointedly jabbed right into Bakugou’s
prostate. And then they both had enough.
“Deku, get the fuck on me already.” Bakugou’s voice tore out of him like a
roar. At that moment, Izuku wanted everyone to hear who did this to Bakugou
Katsuki.
Bakugou stepped back and quickly shucked his shirt off while Izuku undid his
and slipped the tie off his head. He realized they didn’t really have anything
to clean up the mess and looked around. Before thinking better of it, he
grabbed the extra lab coat hanging by the teacher’s desk and laid it on the
floor.
Bakugou gave him a weird look and a sheepish grin stretched across Izuku’s
face. With a shrug, Bakugou looked like he couldn’t care less as he got on all
fours over the coat.
Izuku groaned as he studied Bakugou’s perfect body. His back muscles tensed in
anticipation while he took deep breaths, strong shoulders rising and falling
heavily. Izuku moved forward and spread Bakugou’s legs more, thighs brushing.
He felt the slight quake as he spread Bakugou’s ass cheeks apart, lightly
blowing on it. A deep moan escaped before he remembered where they were.
Reaching for his jacket, Izuku retrieved the condom and small packet of lube
from his pocket. It became a habit to always bring some with him to school
after they started – whatever this was.
He ripped the condom open quickly and slid it over his length, pumping himself
to return to his full hardness. After slicking himself and fingering Bakugou
open, he grabbed Bakugou’s hips as he lined his cock up.
With a steady push, Izuku plunged into Bakugou’s tight heat in one go.
He stopped once he reached the hilt, giving them a moment. Eyes rolling to the
back of his head, Izuku felt like he almost blacked out. Bakugou’s muted
streams of curses kept him grounded. He clenched around Izuku, trying to
adjust, and Izuku squeezed his grip. Focusing on not coming instantly, he ran
his hands over that broad back in soothing motions. Goosebumps popped up
wherever his fingers touched the sweat-slick skin and the engulfing burn felt a
little more manageable.
Bakugou thrusted back onto Izuku’s cock, signaling he was ready. Steadying his
hands, he hauled Bakugou onto his cock at a rhythmic pace.
Izuku snapped his hips at a leisurely stride, leaving slow just to drive back
in hard and concentrated. He wanted to draw it out a little longer while he
still had a bit of self-restraint. Bakugou pushed back, fighting for control,
but he stopped after a particularly hard jab and groaned.
Izuku lost himself in the sensation of his cock dragging along Bakugou’s inner
walls, guiding him deeper. In the back of his mind, he realized they were
probably running out of time, and he noted the soreness in his knees against
the hard floor, but he didn’t care. He felt euphoric.
Leaning down, he covered Bakugou’s back with his chest and pressed him down to
the floor. The change in position rose Bakugou’s ass higher and he felt his
cock press even farther inside. He dug his teeth into the meat of the shoulder
in front of him, cutting off the shout trying to escape.
Izuku slid his fingers into Bakugou’s as they scrambled for purchase of
something, anything. He felt a heartbeat against his chest, racing as their
erratic breaths warmed the air between them. With his body so close, he wasn’t
able to fully pull out anymore. So he decided to pick up the pace.
Resting on one arm, he suddenly drove into Bakugou brutally with short bursts.
With strangled words, Bakugou bowed his head and thrusted upwards with abandon,
grunting, “That’s what -shit-I’m talking about.”
The spasms around his cock told Izuku that Bakugou was close. He reached for
his dick and stroked it in time with his thrusts, spurring Bakugou on as he
chased his orgasm. Izuku felt the pressure building behind his balls, his whole
body tightening as it begged for release.
The speed grew blinding as he pistoned his hips forward, erratic and sloppy
compared to where they started. Izuku heard a whine in his ear and he knew he
hit his prostate. Raising up, he lifted himself from Bakugou’s back to savagely
pound that spot with everything he had. The hefty weight of Bakugou’s dick
started twitching off his palm, precum shooting out faster and faster.
Izuku chanted, “Come on. So close. Right there, Kacchan. Come for me.”Bakugou
cried out until Izuku quickly reached forward to cover his mouth. The sounds of
him coming, the clench of Bakugou’s ass around his cock, shoved Izuku over the
edge as he came with him. Stars burst across his vision, almost knocking him
over from the intensity.
Saliva dripped down between his fingers as Bakugou came, groans vibrating along
his palm. Izuku continued pumping his dick and grinded on his prostate,
wringing every last bit of cum from Bakugou until it became too much and he
pulled away.
Harsh pants for breath echoed in the darkness, the stillness almost jarring.
Izuku rested his head against Bakugou’s back, trying to calm down, until an
exhausted shove pushed him off. He withdrew slowly, both of them hissing in
discomfort.
He tied up the used condom and wrapped it in wads of tissues he found on a
desk. Thankfully, the janitors hadn’t cleaned the room yet so he hoped he could
mix it in with the trashcan and no one would notice.
They dressed in relaxed silence, familiar enough with this part of the routine
that they didn’t feel awkward about it anymore. Izuku’s clothes felt sticky,
clinging to his skin. He kept his shirt on in case they had to dress in a
hurry, but now he was regretting that choice when it smelled of sweat and sex.
He was adjusting his tie when Bakugou’s laugh caught his attention and he
grimaced at the stained coat in his student’s hands.
Chuckling, Bakugou said, “This shit’s nasty. Good luck returning it.”
“It was an extra. I’ll just replace it tomorrow before he notices.”
“Whatever. See you tomorrow, Deku-sensei.” Izuku rolled his eyes in annoyance
at the nickname before Bakugou dragged him in for a kiss with his tie. Bakugou
drew back not a minute later and strolled out of the classroom without a word.
End Notes
     Thanks for reading!
Please drop_by_the_archive_and_comment to let the author know if you enjoyed
their work!
