Everybody’s been posting MS!Deku so I would like to present MS!Deku that’s got a raging crush on PH!Ground Zero. He goes to every fan meet he can, in awe even when Katsuki rolls his eyes and clenches his teeth through the hour-long lines of fans. Soon enough, Katsuki starts to-

Recognize him, raises a brow at him through the crowd at how often he sees him at events. Even gives the boy a nickname. “Deku”, he calls him. And with a pretty pout, Deku shoots back a “Kacchan”, and the hero laughs at his faux-ferocity. The kid’s cute, pretty green eyes, and

soft little freckles dotting all over his cheeks, and when Ground Zero looks him over, he notices that they reach all the way down to his knees. He wonders if they dot his shoulders, his small chest, his curved hips, his a-... Katsuki shouldn’t be thinking those thoughts.

They happen more frequently. He meets Deku on his patrols, starts to think maybe the kid has figured out his schedule, but his cheeks get so flushed and rosy every time their eyes meet that Katsuki can’t reprimand him for it. He wonders what else would make his cheeks so red, his

ears tipped with that rosy color. Deku catches GZ at the end of a shift, and brings him to the office so that Katsuki can change into civilian clothes. He takes the student out for food, idly twirls his intensive as he watches Deku babble about his day or his favorite heroes.

*utensils whoops

Katsuki watches his petal-pink lips, watches them wrap around the straw of his cola and suck, and Katsuki’s mind definitely wanders, wonder what they’d look like sucking around something else- Stop. He’s a goddamned professional. This kid is just a fan, and that’s all he’ll ever

be. Katsuki pays quickly after slurping up his meal, and intends to rush off, but Deku grasps his hand with those pretty, big eyes.

“Can.. can you walk me home, Kacchan? It’s really dark out,” he mumbles, pouts those lips and fuck, Katsuki can’t say no to that face. Can’t say

no to this beautiful fucking boy, the freckles on his cheeks, the curve of his hips, the slender lines of his hairless legs, /fuck/-

“You shouldn’t have waited until my shift was over then,” he snaps, turning his head away to hide his wandering eyes. “You know I work late.” Deku

lets out a whine. Fuck, a /whine/, and Katsuki’s ears actually fucking perk up, single out that noise and clutch onto it for dear life. He’s still, mind flickering through images with his little uniform slightly unbuttoned, and Katsuki notes the freckles in his imagination. Then,

his uniform is open, unbuttoned to reveal sweet pink nipples, hard and pert. Katsuki wants to flick one, watch Deku gasp as Katsuki toys with him. Deku’s pants are off, a fine little trail of hair leading down to a pretty, tiny pink cock that leaks precum, pearly at the tip of

it. He’s panting, in this imagery. Little tongue peaking out to suck in air like he’s breathless. “Please, Katsuki. Please, Please, Please,” he begs, so pretty spread out upon sheets and -

“Please, Katsuki..... Katsuki?”

Deku is calling to him. The real Deku, the one that

still has his smaller hand wrapped around Katsuki’s. The hero visibly shudders, snapped out of his trance to look down at the boy with wide eyes. “Y-yeah,” he stutters, surprising both himself and Izuku in the process. “Yeah, fine. Lets get going then. Your mom’s probably

worried by now.” He mentions dumbly, and Deku leads him to the door of the restaurant, a slightly-smug look on his face as he leads them both to his home. It takes longer than Katsuki would think, and Deku hasn’t let go of his hand. He’s rambling, swinging their joined hands to

and fro, and if Katsuki wasn’t actively contemplating having that pert little ass in his grasp, he would feel more like a parent walking home his fucking son from tutoring sessions.

Logically, he knows he’s gross for this, gross for looking at this tiny boy, his frame so much

smaller than his own, with such a hungry gaze, but he can’t help himself. Deku is happy to have every bit of attention from Katsuki that he can get, and Katsuki can’t help but give it to this dazzling little emerald of a boy. He wants to give Deku /more/ attention, lick at his

lips, spread his hands across his plush thighs, bite at the pale skin there and leave a mark across his body to let everybody know that Groud Zero has claimed this boy, knows nobody else could pleasure Deku like his perfect hero, Kacchan. Circle his fingers around his tight

little hole and press juuust the tip of his finger in. Watch Deku squirm as he licks around his first joint and his rim, listen to him whine like he did earlier and-

“We’re here, Kacchan,” the little sunshine of a boy announces, bouncing on the balls of his feet, staring at

Katsuki like he’s hung the fucking stars in the goddamn sky.

The hero immediately feels guilty, watches this sweet boy beam at him and knows that his thoughts are disgusting. Katsuki’s a grown ass man, and Deku is barely a teenager, but he wants. The pit of his stomach sparks

when their eyes meet, and oh god, he wants this boy. He’s half hard in his jeans, standing at the door to Deku’s home, where his fucking Mom is just behind the walls, and he’s having a mid life crisis about wanting to fuck the tears out of her middle school son. It’s disgusting,

but he can’t help it. Deku shyly scoots closet to him, and Katsuki’s breath catches in his throat.

“Thank you for walking me home, Kacchan. And for the meal. And everything, really. Thank you for all of it,” he speaks softly, reaching his free hand behind his head to scratch.

Katsuki snorts, shakes his head even though he’s admiring the sweet little boy in front of him, drinking him in. “Whatever, need. A hero can’t let somebody as small as you go home alone. Would have gotten mugged or some shit,” he blows it off, turning his eyes away.

“Well, it

was kind of you anyways, Kacchan. Even if I did ask, you didn’t have to say yes,” he drawls, pretty green eyes searching the hero’s face for something. Katsuki doesn’t know what.

“Yeah, well. I did, so go inside already,” he huffs, raising a hand to brush through Deku’s hair,

and oh fuck, it’s so soft, feels so nice between his fingers and Katsuki wants to grip it and wrench his head back, watch the tears form in Deku’s eyes as he fucking takes what he wants, mom be damned-

There’s a soft pressure on his cheek, slightly wet from somebody licking

their lips just before, and his eyes search until he finds Deku fully red, lowering from his tippy toes and scrambling to open the door.

“Thanks again, Kacchan. Good night!” He responds hastily, and then the door shuts.

Katsuki takes a deep breath, and tries not to break down

the door to devour that cute little fucker in green.

He breathes heavily, and he fucking /wants/.

///tbc///

Katsuki doesn't see Deku for a while after that. It's not that he doesn't /want/ to see him, with his little freckles and thick thighs, but... Okay, maybe Katsuki doesn't want to see him for a while. The night that Deku pressed his lips against Ground Zero's cheek was one that

had been rolling around the man's brain for hours upon hours. God, he'd gotten /hard/ to that memory. He'd jerked off, touched himself to the innocent little kiss that Deku gave him. So yeah, maybe after that he wanted a little space, a little time to calm down, but that doesn't

mean he stopped jerking off to that memory. In fact, it had gotten so frequent that he'd been jerking it in the shower before work, and then again in bed right before he sleeps. Deku is in every goddamn waking moment of his, and he swears that he sees flashes of green hair on

every fucking patrol.

He needs to end this. He needs to stop, needs to ignore Deku completely like the plague, but he can't. It's after he's fought a villain, outfit torn and mask falling off, that he sees the boy again. He's giving a statement to the police so they can do a

follow-up, when he actually does spot the green hair. Katsuki looks over, and in the next second, his eyes connect with that fucking pretty emerald that's been haunting his dreams, and his words stutter.

There he is, as bright as ever, waving at Katsuki with a maniacal smile on

He's in his cute little school uniform, all buttoned up with gold, and Katsuki's traitorous goddamned dick twitches in his pants. In front of the police. It has the nerve to twitch.

"-Zero, Ground Zero, sir. Could you give us any more information about his qui-"

Katsuki cuts

the idiot off, tired of listening to the cop drone on and on about shit he doesn't care about. He caught the villain, that's the end of his job for all he cares. "Can it, I gave you everything I could. I'm leaving," he snaps.

Deku looks hopeful when Katsuki starts walking in

his direction, but remembering his thoughts from before, Katsuki aborts mission, blasting off and away from the boy. He doesn't say hi, doesn't even wave at the boy because of the twist in his stomach and the lump in his throat.

He sits above the cityscape for a while, trying

to forget the hurt twist of Deku's- Izuku's eyebrows, the wobble of his strong smile, the confused tilt of his head. Katsuki should have acted normal, at least. Said hi to the damn kid before leaving, but seeing him in the flesh, knowing that he was so close to being grasped

between Katsuki's fingers, made him panic. He felt it again. That aching, all-possessing need to take what he wanted, what he needed from that boy.

He's filled with guilt, shame now. Low in his stomach, it curls over the feelings he's developing for the boy, and for the rude

actions he'd shown to him previously. He's so deep in thought that he doesn't realize he's arrived to Deku's house until he hears Deku's mom call him down for dinner.

His knuckles are rapping against the door, and he doesn't really know what he's going to say until the older

woman opens it. She seems only moderately less starstruck than Deku when she answers, similar green eyes wide with wonder. "O-Oh, Oh dear. Ground Zero, sir? How can I help you this late at night, is everything okay? Are we evacuating? Is something happening?" She rambles, so much

like her son that it's hard not to chuckle at her sweet face. "No, Ma'am. Nothing like that. I just.... Walked Deku home a few days ago, and I wanted to check in on him. Is he home?" He asks, feeling lame in front of the woman.

She smiles at the mention of her son, nodding her

head quickly and ushering the man in. Bakugo runs his hands through his blonde spikes, and before he knows it, he's seated before a woman who introduces herself as Inko Midoriya, Deku's mother. She's two heads shorter than Katsuki himself, wearing her hair tied back into a bun,

and sits properly upon the chair across from him.

"Izuku, darling!! You have a visitor!!" She calls after offering Katsuki a drink that's politely declined from a bristling hero.

"A visitor?" Deku calls, and then the boy is bounding down the stairs, and when he sees Katsuki,

his face lights up. "Ground Zero!" He yelps excitedly, before his smile dims a bit upon remembering earlier.

Katsuki offers an awkward wave, glancing over at Inko, and Deku being the perceptive little shit he is, grabs Katsuki's wrist and tugs him upstairs. "Sorry, Mom. This'll

just take a second! Ill be down for dinner soon!"

Katsuki doesn't know what he expects from Deku's room, but it definitely isn't the copious amounts of All Might memorobilia with a few splashes of himself. He looks around, almost stunned before he smirks and looks to the dork

that locked the door behind them. "You really are a fanboy, huh?"

"We aren't talking about that. What do you need, Katsuki?" He asks, and god that flush is back. Bakugo feels his pants restrict himself slightly at even just that, and he growls at how much of a touch-starved

bastard he is.

"I wanted to come over to uh, apologize, I guess. For fuckin' ignoring you earlier, or whatever," He grumbles, and the sad tilt of Deku's brows lessens until he looks like the happy puppy he is again.

"That's okay, Katsuki. You were doing important work, too

important to worry about me," Deku rationalizes, and Katsuki shakes his head.

"There's nothing that's too important to say hi to you for. It only takes a second," Katsuki responds, taking a seat on Deku's bed. Deku takes a seat next to him, and even the simple rub of his

shoulder against Katsuki's makes the nerves on his side light up. His hands are sweating, and he wipes them off on his torn up costume, turning to look at the boy.

"I-" Katsuki doesn't get to continue, because Deku's face is a fucking inch from his own, their noses brushing

gently as Deku holds his gaze with those pretty fucking eyes of his. "You mean that? You think I'm important?" He asks shyly, a gentle, dainty hand reaching up to rest on Katsuki's shoulder.

Katsuki only nods, shell-shocked by this beautiful, sweet little boy who blows

Katsuki's breath away at every turn.

Its silent for a moment, just two people taking in the same air, and Deku's lithe little tongue reaches out to lick his lips quickly, nervously. A second is all it takes.

A second, and then Deku's eyes are closing and he presses his lips

to Katsuki's.

Katsuki's mind is spinning, twisting and turning like the cogs in his brain are trying to decipher the most complex mission he's ever taken to date. Deku's lips are soft, soft like he remembers in all of his dreams, like he remembers when Katsuki is stroking his

cock at night, up and down with the generous glide of lube, fucking into his tight fist like he can create just how warm and wet Deku's cute little fucking hole would be.

It takes a second, but the stagnant kiss breaks, and they're just two boys staring at eachother.

They're both out of breath, and Katsuki's eyes wander. To Deku's worn out shirt, to the line of his throat that's peeking out of his collar, to the way he can let his eyes wander to the soft expanse of his tummy from where Katsuki slightly towers over the boy.

It's a second,

and then Katsuki's resolve crumbles.

His hands race up, grip Deku's cute little cheeks in his hands, and then he's bringing their lips together again, pressing them just so. The gasp the boy lets out is delicious, sounds sinful, and Katsuki takes that moment to slide his tongue

in alongside Deku's. The boy obviously doesn't know what he's doing, but he's always been a quick learner, and with the welcoming little groan that Katsuki lets out, he catches on quickly. Deku's arms wrap shakily around the hero's shoulders, and Katsuki takes the step to bring

them chest-to-chest.

Deku's legs move, and suddenly he's in Katsuki's lap, wrapped around his waist like Katsuki has fucking dreamed of, and he groans. He's so light in his lap, weighs practically nothing, like Katsuki could lift him with one finger, but it does something

to the hero. The twitches in his uniform increase, and before he knows it, the boys little ass that's naturally grinding down against his cock has him half-hard.

Katsuki has to use one hand to steady Deku on the hip while their kiss breaks, just needs a fucking breather before

this kid has him busting in his fucking pants like /he's/ the teenager. His lips travel down Izuku's jaw, pressing kiss after kiss there and listening to the hot little whines that Deku makes.

"Fucking christ," he mumbles against Deku's ear, biting at his lobe. "You're gonna

be the death of me." And he means it. Deku could end him, could cost him his career, his whole livelihood, could ruin him and put him in jail for years, but he's just such a sweet little flower that Katsuki can't help but corrupt. He cant help but place his dirtied, disgusting

hands all over this boy, around his waist, to his back, to squeeze his cute little ass in his shorts. Katsuki fucking /wants/ this boy, and he'll take whatever he can fucking get from him.

"K-katsu- Kacchan, should we be do-... doing this, oh god," he sighs after a moan,

wrestling in Katsuki's grasp to gyrate his little hips down and into the man's now fully hard cock.

"God, of course we fucking shouldn't, you idiot. But... I don't know if I can stop now," he replies, lips attacking Deku's collarbones as he practically rips the neck of it away.

"I.. I don't want you to," he whines, tilting his head back, and Katsuki licks the bead of sweat that drips down his throat, leans back to see Deku with his face shiny, completely debauched and lustful.

Izuku is needy. He's shivering and trying to quiet his noises so his poor

mom doesn't hear anything suspicious. God, his mom is downstairs, but the thought is fleeting, because he wants.

He /wants/, just like Katsuki.

///tbc///

His hands /burn/. Literally, the hands that grip Deku's cute little ass crackle with his quirk, unable to stop himself as they continue the slick twist of their tongues together. Katsuki smells something burning, and they're both startled for a second.

When he realizes that he's just burned two identical hand prints into Deku's cute little fucking shorts, he groans. Why? Because the fucker isn't even wearing boxers, nor briefs. Deku is wearing the tightest little pair of Ground Zero underwear that he's ever fucking seen.

He presses Deku close, leans to his ear as he slips a few of his fingers under the band of Deku's fucking /panties/, goddamn it. "You must like me a lot, huh, De-ku?" He drawls out, letting the boy flush under his attention. He only receives a gasp from the words, but soon,

Deku is wiggling out of his ruined shorts to let Katsuki see his cute little cock leaking in his signature uniform colors. God, there's so much that Katsuki thinks maybe Deku has come already, just from the kisses and touches, too inexperienced to handle more without busting.

"God, did you... Izuku, did you cum already?" He asks, and Deku looks at him with tears in those big green eyes of him, before burying his face in Katsuki's neck.

"I-I'm sorry, Kacchan! I tried to hold it, but it felt so good, so much better t-than... than when I use my own

hands," he whimpers, the epitome of shame.

Katsuki blinks once, twice, and then he's shoving his free hand down the front of Deku's panties, fingers immediately sticky. He pulls out and finds them wet with a pearlescent liquid, and can't help but bring them immediately to his

mouth.

Katsuki's cock twitches, and Deku whines at the movement, but the Hero is too busy savoring the salty-sweet-bitter taste of Deku's cum to say anything. It drips onto his tongue as he sucks his fingers down, and Katsuki pulls his hand away to then shove his fingers into

Deku's mouth. "Suck." He demands, and god, Deku does it without a complaint, eyes half-lidded as he sucks the rest of his spend off of Katsuki's fingers. God, his little mouth is so hot and fucking wet, the way his tongue rolls around two of Katsuki's fingers making him leak in

his own pants. He rips the fingers away eventually, and tugs Deku's underwear down finally. His fingers find the pucker of Deku's ass easily, and he circles them gently, feeling the boy tighten up even more.

"Y-your fingers, Kacchan," he whines, pressing his tiny hips down

against the man's fingers.

"Mm, too much for you, sweetheart?" Katsuki purrs, pressing just the tip of one finger into that tight fucking hole that Katsuki's been dreaming of. He can't wait to get his dick wet, wants to bend the boy over his little twin mattress and use him

for his little hole, pound his cock into the sweet little thing and let his fucking mom hear how good Katsuki is treating him, how right his hole feels clenched tight around Katsuki's cock-

"I-it's a lot bigger than my own fingers," He huffs, and Katsuki can't take it anymore.

He shoves Deku off of his lap and pushes him onto the bed, jarring his finger in the boy's ass and pushing it deeper into that cute little hole. "K-Kaccha- Katsuki wait," he wails, having never taken something so thick before when he thought about the hero at night in his bed.

"You've been playing, huh? Without my permission? Didn't wait to let me be the first thing in this tight fucking hole, Izuku? Shame on you. What would your mom think if she knew you fucked your own little hole up here all alone?" Katsuki spits, words harsh and growled in a deep

tone. "C-can't help it, Ground Zero, S-sir! You were just so attractive when you defeated that hero two months ago, and I just-" Katsuki silences him with a kiss, and then takes into account the little nerd's words.

"Wait, two months ago?" He presses, squinting at Deku.

"That's before we met. Oh my god, you nasty boy, Deku. You've been getting off to me since before we met, you fuckin' slut. Have you been seducing me this whole goddamn time?" He asks, pressing another finger in next to the first just to watch the flustered boy squirm.

It's so fucking sexy, the way he takes Katsuki's fingers like a champ, even while whimpering in pain from the thick intrusions, barely able to answer properly.

"N-no, no, a-ah, feels so good right there," he stutters as Katsuki crooks his fingers, finding that sweet spot that

Deku's fingers were too short to reach when he got off on his own time. "C-couldn't help it, l-looked so good all sweaty in interviews," he wheezes. using his hand to brush those pretty green curls away from his face. He's crying, sniffling at being caught in his acts, and at

being pounded by Katsuki's fingers. He can almost take a third one, almost, so Katsuki takes the boy's tiny, soaked cock in his hand and pumps it in time, wanting to milk the pretty boy for all he's worth while he can. He finally pops in the third finger before he starts talking.

"Who knew, right? Bet you were thinking about sitting on my cock at every fan meet, huh? Wanna be on your knees under the table, letting you suck me off and keep my cock warm while I talk to my fans. Precious little fanboy, just a slut for hero cock. How many other heroes do you

beg for like this, Deku? Did All Might let you suck his cock too, hm? Eraserhead, Red Riot?" He sneers, and Deku's hiccuping with cries now, a fist balled up in the corner of his eyes as Katsuki presses against his prostate with every rough thrust of his fingers.

"N-no! Just you, Kacchan, J-just, gosh, just you!! Only want your cock," he whines, and Katsuki wonders where the fuck he got that language from, but he thinks he's got a pretty good idea. "Only for you."

He's seconds away from cumming again, Katsuki can feel it, and it must

have gotten loud, because Katsuki's trained ears can hear Inko's call from downstairs, a curious little "Izuku, are you okay?" that has Katsuki's dick harder than it's ever been. He's gonna get caught. Katsuki is gonna get caught with three fingers deep inside of this woman's

barely-teenage son, and he's gonna cum in his fucking pants while he does it. "Izuku?" he hears again, closer this time, and Deku must hear it too, because he's sobbing harder, begging Katsuki to keep going. "M-my mom, Kacchan, please, please please please," he pants.

"You better fuckin' cum before your mommy gets here, Izuku. Better blow your fuckin load with my fingers in your ass. Don't want to be the reason that Ground Zero ends up in jail, huh? All because you couldn't stop touching your little prick to the thought of me. You better cum,

De-ku. Right. Fucking. Now!" and with that, Katsuki presses his thick fingers hard into his sweet spot as steps get closer, watches as Deku's little cock spurts rope after rope of cum onto his own chest. His eyes are wide, pupils blown into large dark circles, and Katsuki doesn't

think he's ever seen anything so fucking beautiful in his goddamn life. He barely has time to pull Izuku's shirt down and his blanket over the boy's lap before his mom is knocking and coming in.

She's greeted with a very upset-looking Izuku, and a very somber Katsuki patting

his shoulder as the boy seemingly slumps into Katsuki's embrace with a sob. They seem to be having a heart-to-heart, and she exclaims a quiet "Oh, dear." She backs out of the room, and closes the door swiftly. "I'm so sorry, you two. I thought I heard some noise earlier and

wanted to see if you two were okay."

"I-I'm fine, mom," Izuku croaks, throat sore and dry from all the crying he's done. Katsuki gives him a shit-eating grin, reaches a hand down to palm at Izuku's messy little cock through the blanket and listening to him yelp. "W-we were

talking about bullying," he whines, nuzzling into Katsuki once more.

Outside of the bedroom, Inko nods sympathetically, knows that Izuku's had hard times at school for more than a few years, and is happy to see the hero consoling her little son, or whatever it seems to be.. "Of

course, honey. You two take your time and come down whenever you're ready." She calls out, and then the footsteps are retreating back down the stairs.

Izuku gives Katsuki a grumpy look, but the hero buries the expression with a deep press of his lips, licking into his mouth

like he's looking for an oasis.

And if Katsuki came in his pants from almost getting caught and seeing Izuku cum twice from /his/ ministrations? Well, nobody but Katsuki would know. Certainly not the fucked-out little boy to his right,

and certainly not Mrs. Inko Midoriya.

///tbc///