Posted originally on the Archive_of_Our_Own at https://archiveofourown.org/
works/12834270.
  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:
      Kirishima_Eijirou/Toyomitsu_Taishirou_|_Fat_Gum, Kirishima_Eijirou_&
      Toyomitsu_Taishirou_|_Fat_Gum
  Character:
      Kirishima_Eijirou, Toyomitsu_Taishirou_|_Fat_Gum, Aizawa_Shouta_|
      Eraserhead
  Additional Tags:
      Kink_Meme, Age_Difference, Oral_Sex, Exhibitionism, Fat_Gum_not_Fit_Gum
  Collections:
      My_Kink_Academia
  Stats:
      Published: 2017-11-26 Words: 2487
****** a little discretion ******
by xenodickery
Summary
     It was a shame the world of pro hero-ing didn’t really allow you to
     just take a break whenever you felt a bit horny.
Notes
     another_for_the_bnha_kink_meme
See the end of the work for more notes
“Faaaat,” Eijirou whined and slumped down in the spare chair in Fat Gum’s
office. “I’m bored.”
Fat Gum didn’t look up. He was in the middle of some boring paperwork after the
incident they’d gotten wrapped up in the day before, and on the one hand
Eijirou was proud to have such a smart, conscientious hero for a boyfriend. On
the other, he wanted attention. As much as he could get for as long as
possible. It was a shame the world of pro hero-ing didn’t really allow you to
just take a break whenever you felt a bit horny.
“Faaaaaat,” he tried again, leaning back over the side of his seat so that his
head rolled back on his neck.
Fat Gum gave a snort of laughter. “You can help me with this paperwork if
you’re so bored.”
Eijirou shuddered. “No thanks,” he muttered. Fat Gum went back to his work and
Eijirou turned in his seat so he could watch him. The fight had depleted some
of his fat stores but he was still pretty big, his gut hanging low where he sat
with his legs spread. There was probably just about space for Eijirou to curl
up there if he wanted to, in that little bit under the desk. And the desk was
blocked off on this side so nobody would even know he was there. He wondered if
Fat Gum would mind the interruption.
Quietly Eijirou crawled out of his seat and around to the other side of the
desk on his hands and knees.
“Kirishima?” Fat Gum said, as Eijirou reached one of his huge chubby knees and
tried to sneak around it.
“Um?”
“What’re you doing?” Fat Gum asked, laughing and pushing back in his seat to
look down at him.
Eijirou grinned up. “Wanted to see if I could fit under your desk?”
“Yeah? And what’re you gonna do now you’re down there?”
Eijirou's smile turned wicked. "Have some fun?" he suggested. There was no way
Fat Gum had meant the comment to come off like a euphemism but now the thought
was in Eijirou's head anyway. And maybe that was it, the itch he felt like he
needed to scratch - maybe he wasn't bored so much as just horny.
Fat Gum's amused smile faded to be taken over by a look of surprise. "Uh,
what?"
"You know," Eijirou said, smile widening. He stuck his tongue into his cheek
and made a jerkoff gesture with his hand. "You keep workin', and I'll just get
to work down here."
"Ah -" Fat Gum was starting to blush. "I dunno if that's a good idea, kiddo. I
got all this work to finish, and what if someone comes in -"
"Nobody's gonna come in!" Eijirou said, pushing his way between Fat Gum's thick
thighs and laying his hands on them. "Mm, I just don't wanna wait until
tonight, you're gonna be here ages. And I'm hungry now."
Fat Gum's blush covered his entire pudgy face now. Cute. Eijirou loved how easy
he was to embarrass, and how he'd always get all the more intense the more
Eijirou made him blush. He moved his hands to the front of Fat Gum's
sweatpants, which were a little less strained than usual, and rubbed his hand
over the front of them. He found Fat Gum's cock easily, it was already getting
hard under his hand, and Fat Gum groaned when Eijirou pressed down harder.
"Can I have a taste?" Eijirou groaned, pressing up against him.
"You're incorrigible," Fat Gum said, putting a hand over his face.
"I dunno what that means."
Fat Gum snorted again and looked down at him fondly. "You really can't wait?"
Eijirou pressed down with his palm, wrapping his fingers around Fat Gum's cock
through his clothes. "Do you wanna wait?"
"N - no," Fat Gum stammered, hips moving fractionally.
"Yeah," Eijirou crowed victoriously. He tugged the sweatpants down just at the
front so he could free Fat Gum's cock, licking his lips when it caught on his
round belly before flopping free.
"S - scoot back a little," Fat Gum said, reaching down to ruffle Eijirou's hair
gently. "Just in case."
Eijirou laughed as he leaned down, and watched Fat Gum shiver at the feel of
his hot breath. "Nobody's gonna come in," he said, but shuffled back
obediently. "You just get on with what you're doin', I'll be quiet."
The first taste of Fat Gum's cock on his tongue made Eijirou moan suddenly, and
Fat Gum's knee nudged him in the shoulder, a reminder to be quiet. There were
other people around in the building but nobody was likely to be near enough to
overhear them unless thew two of them were full on fucking, which - okay they'd
only done it in the office once, and it had been great - but even Eijirou could
see that it was more sensible to keep that out of work hours. But one little
blowjob couldn't hurt right?
He grabbed handfuls of the fleshy skin of Fat Gum's thighs as he worked his
cock into his mouth, taking his time over sucking on the head at first, before
taking it down to the back of his throat, as deep as he could manage without
choking. Above him Fat Gum made a low noise, not enough that anyone would
really notice but it let Eijirou know he was doing his job right. He fucking
loved sucking cock, something he'd discovered by accident at a sleepover once
when he and a friend got a little overcurious. There was more than one guy at
UA who'd had their first ever blowjob from Eijirou, and sometimes he was
relieved not to be a girl so that he didn't have to worry about getting some
kind of a reputation, but he didn't really care if his friends thought he was
slutty. He knew what made him feel good.
And Fat Gum's cock in particular was made to be worshipped. Eijirou swore down
it got bigger when he had more fat on, feeling just that bit chubbier in his
mouth, choking him that bit better than when he'd slimmed down. Eijirou liked
it both ways, he wasn't picky. The first few times he'd tried he'd only been
able to get the swollen head in his mouth, but with some practice he'd gotten
the hang of taking it deeper, letting his mouth and throat relax, fucking his
own face down on that hot swollen flesh. One of these days he was gonna talk
Fat Gum into fucking him with it, and then he could die a happy man.
Eijirou was just getting into his stride when there was a knock on the door,
and someone opened it without waiting for Fat Gum to call out. Fat Gum's thigh
jumped and his knee knocked against the desk loudly.
"Ah!" he said in a loud voice. "E-Eraserhead, hello."
"Fat Gum, sorry to intrude," came Aizawa's dull voice.
Eijirou's heart started pounding. His teacher was only metres away, probably
less by now because Fat Gum's office wasn't all that big even for a normal
sized person. He felt almost paralyzed with a mix of fear and excitement, and
Fat Gum's cock slipped out of his mouth with a quiet slap as it fell against
his stomach. One of Fat Gum's hands reached under the desk and grabbed a loose
handful of Eijirou's hair, tugging gently, but Eijirou shook him off and went
back to his task with renewed determination.
"H-h-how are you?" Fat Gum stammered. "Did you - n-need something?"
Come on come on, get a grip Eijirou thought as hard as he could. Fat Gum was so
painfully honest, anyone could see through him lying, but as long as Aizawa
didn't work out what had him so flustered then it wouldn't matter.
There was a long pause before Aizawa spoke again. His voice was still quiet,
but closer. He must have been standing right by the desk. "Is everything
alright?"
"Fine!" Fat Gum said loudly and Eijirou winced.
Way to be cool about it he thought and rolled his eyes. He reached up and
slowly wrapped his hand around Fat Gum's cock.
Fat Gum's fingers slid into his hair again, pulling harder this time, and
Eijirou had to choke back a moan, muffling himself on Fat Gum's cock. That
probably hadn't been his intention but holy shit had it worked. Eijirou could
feel his own cock leaking in his pants.
"I'm here to talk about Kirishima," Aizawa said. Eijirou perked up, and Fat
Gum's fingers tugged his hair again hard before letting go.
"Oh?"
"I know the two of you have...bonded," Aizawa said, in a careful way that made
Eijirou freeze. Did he know? No, there was no way he could know. Could he?
"W - well," Fat Gum said, laughing uncomfortably. Eijirou pinched his thigh and
Fat Gum let out a yelp which he stifled quickly. "Sorry, stubbed my toe, uh -
you were saying about Kirishima-kun?"
"I know you only work together in a Hero capacity, but I'm sure you've probably
picked up that he's not the most...dedicated student."
Asshole," Eijirou thought, tightening his fist on Fat Gum's cock and sucking on
the head harder in his frustration. He was a great student when he gave a shit
about what he was studying. He rolled his tongue over Fat Gum's cock and
grinned to himself. Just look how great he was at giving head!
Fat Gum coughed in a pathetic attempt at covering up a shaky moan. "I - guess
he can be a bit distractable."
"Mm," Aizawa hummed in a vaguely suspicious voice. "I know this isn't your
responsibility, and frankly I wouldn't blame you if you said no, but maybe you
could speak to him. I won't ask you to tutor him, but if you could - impress
upon him the importance of keeping up with his studies as well as his
internships."
"Of course!" Fat Gum said quickly, his laughter tinged with relief. "I'd be
happy to help - I was never a very dedicated student myself but of course I'd
like to support him in any way I ca - hah - ah." Fat Gum's voice skipped when
Eijirou reached down to touch his balls, rolling one in his hand as he took Fat
Gum's cock deep in his throat again.
"Aside from that, I think the biggest issue is his continued reckless behavior
that you mentioned in your report."
Fat Gum groaned, and this time Eijirou didn't think it was because of what he
was doing with his mouth. "It's that hard head of his. Still thinks he can just
rush into anything."
"Hopefully it's something he'll grow out of."
"Yeah." Fat Gum reached down again, his large fingers touched the edge of
Eijirou's jaw, then he stroked his bottom lip with the pad of his thumb. "I'd
feel a lot better if I knew he was safe out there."
"Safe," Aizawa said with a disdainful snort. "That's a nice thought."
Eijirou ran his tongue over Fat Gum's thumb. There wasn't space for it to fit
inside his mouth alongside Fat Gum's cock, and drool ran from the corner of his
mouth as he petted it with the tip of his tongue.
Aizawa cleared his throat. "I'm leaving now."
"Oh, y - yeah. Good - goodbye!" Fat Gum said weakly.
Eijirou waited until he heard the office door close, then he surged up, wiping
his mouth on his sleeve as he pushed up between Fat Gum's thighs and wrapped
his arms around his huge stomach.
"Kirishima!" Fat Gum yelped, shoving at his shoulder.
"Aw, hey, don't be like that," Eijirou said, nuzzling his face against Fat
Gum's stomach.
Fat Gum groaned. "No, Kiri—”
From across the room, Eijirou heard the unmistakeable sound of Aizawa clearing
his throat again. He froze, body tensing. "Uh oh."
"Kirishima-kun," Aizawa said in a bored voice. "While you're learning some
restraint, why don't you try picking up some discretion at the same time?"
Eijirou's mouth fell open, but Aizawa was gone before he could stammer out a
response, slamming the door behind him.
"Oh, fuck," Fat Gum groaned, sinking down in his seat.
Eijirou blinked. "He didn't yell at me."
Fat Gum wasn't listening. He'd covered his face with both hands and was
groaning softly.
"Hey," Eijirou said, seizing handfuls of Fat Gum's hoodie and hauling himself
up onto his lap. He gripped Fat Gum's belly with his thighs to balance himself.
"Hey. Hey, Fat. You think he's cool about it? He didn't say anything."
"I - I have no idea," Fat Gum groaned. He let his hands drop, covering
Eijirou's thighs with them, and using them to tug him higher so he wasn't
slipping. "You know he's right about, uh - discretion."
Eijirou's nose wrinkled in thought. "That's like -"
"Not going around shouting about the fact we're sleeping together," Fat Gum
explained patiently. "And not sucking my dick in the office when anyone could
walk in."
Eijirou turned red. "I didn't know he was just gonna come in without waiting,"
he grumbled.
"You could've stopped." Fat Gum said, but there was a smile playing at his
mouth.
"Nah," Eijirou muttered. He reached up and wrapped his arms around Fat Gum's
neck, then leaned up to kiss him. "Does it really bother you?" he murmured,
nuzzling Fat Gum's nose with his own.
Fat Gum sighed and wrapped his arms around Eijirou's waist. "Nah. I just worry
about you. And I don't wanna get in the way of your last year of school
either."
"You won't!" Eijirou said, and leaned in to kiss him again. "Mmm. Besides,
you're gonna help me study, right?"
"Do I have a choice?"
"Tutoring in return for sexual favors."
Fat Gum laughed. "No way."
"Worth a shot," Eijirou said with a shrug. He pecked Fat Gum on the mouth then
released his grip and slipped back down to Fat Gum's lap. "So...want me to pick
up where I left off?" he asked, trying to make his eyes do something sultry.
"No!" Fat Gum said, grabbing for his wrists. "Seriously, after that - let's
finish it later. After work."
Eijirou stuck his tongue out. "Spoilsport," he said, grinning.
"I mean it," Fat Gum said in the least strict voice Eijirou had ever heard. "Go
sit over there and don't - don't even think about sex until I've finished this,
alright?"
"How're you gonna know if I'm thinkin' about it?"
"Alright?"
Eijirou laughed. "Yeah, yeah, I promise."
Fat Gum grinned and ruffled his hair. "I'll make it up to you later."
"...Okay, now I'm thinkin' about sex again."
"Seriously, go over there, right now."
Eijirou cackled with laughter. "Yessir."
He scrambled to his feet, but as he turned to walk back to his seat, Fat Gum
slapped his ass with one huge hand, almost knocking him over. Eijirou turned
back to look at him, wide-eyed.
"Later," Fat Gum said with an evil smile.
End Notes
     yo
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