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Summary:

Up against the first villain after his hiatus, Izuku realized he should have changed the design of his hero costume, or at least darken its colors.

Because having two obvious wet patches exactly right where his nipples are is embarrassing as hell.


Or, Izuku leaks milk while being badass and Kacchan gets horny.

Notes:

this is an un-beta’d, self indulgent smut.

mind the tags!

(See the end of the work for more notes.)

Work Text:

It was his first major fight after he had returned for his one year hiatus. He was originally supposed to stick with minor hero work especially since his body has just recovered from pregnancy and birth. Male omegas usually take a year and a half leave but Izuku had insisted he’s recovered enough.

Strolling the streets, he waved at and thanked the civilians who offer him and his family congratulations and well wishes. Beside him is Todoroki, who volunteered to be his partner for the patrol. 

Just a few more streets and their morning duty would have ended without so much fuss. However, a loud rumbling from behind them followed by terrified screams of civilians changed that.

The familiar booming sound of his alpha’s explosion echoed in the air and he spotted the blond man chasing after a villain that appeared to have a speed-enhancing Quirk.

“FUCKING GET BACK HERE!” Kacchan, or rather Dynamight, yelled. By this time, the public is used to his husband’s callous behaviour and uncensored mouth. Though occasionally, Dynamight got the flak from it from the press. The good thing is he does know how to filter his words in front of young ones.

Hot on the explosion god’s heels are his friends: the popular Sturdy Hero, Red Riot and the charming Stun Gun Hero, Chargebolt.

Todoroki spun around and stomped his feet, creating a massive wall of ice that would have effectively stopped any common villain. But this one not only has speed-enhacing Quirk, apparently he can also fly.

— which meant that this villain consumed one of those new black-market pills. Midoriya assumed.

A flash of green lightning wrapping around his body, he activated Float and rushed towards the villain.

“DEKU! YOU’RE NOT SUPPOSED TO FIGHT YET!” His alphas yelled from a distance on his left. 

But Midoriya ignored him and pursued the villian. With Todoroki producing taller walls of ice, the villain is slowing down with all the evasion manoeuvres he had to do.

Taking this as an advantage, Midoriya inhaled deeply before unleashing Blackwhip to restrain the man. Once the whip wrapped around the villain, he deactivated Float and descended to solid ground.

Approaching the captured man calmly, he glared at in reproach. The villain seethed but leered at him once the omega is nearer to him.

“You’re leaking, mommy.” The vile man lasciviously commented. “If I weren’t restrained, I’d suck all the milk from your tits — !!”

Midoriya didn’t let the man finish. He raised his leg and kicked the man hard enough to render him unconscious. A shiver went down his spine as he looked down on his chest.

He was indeed leaking.

The cloth is sticking to his nipples in an uncomfortable manner and it doesn’t help that they’ve grown even more sensitive nowadays.

Heavy, frantic footsteps alerted him that his alpha and their fellow heroes are heading towards him. Wrapping his arms around his chest, he turned around to greet them.

“Ka —”

“You damned idiot, I thought we agreed on you not taking major fights!” Dynamight scolded. He thumped the omega’s back in reproach.

“Oi, Bakugou, it ain’t manly to hit your mate.” Kirishima stated.

“That ain’t cool, Bakugou.” Kaminari seconded.

Todoroki nodded in agreement. The three men stared at the blond alpha with exaggerated disapproval. 

“Fuck off!” Bakugou retorted. 

“Daddy said a bad word!” Kaminari teased. “Mama Izu, Daddy said a bad word!”

Beside him, Kaminari was struggling to keep his laughter down. Todoroki was even smiling, amused at the vein popping in Bakugou’s forehead.

“Shut your damn mouth!” 

The laughter only grew louder as Bakugou raged over their friends’ teasing. Meanwhile, Midoriya clamped his mouth shut to suppress the whine from leaving his lips. He hugged his chest closer as he felt even more milk flow from his nipples.

“Izuku? You alright?” Todoroki asked, concerned etched on his face.

“Y - Yeah. I’m okay.” He replied. He saw his alpha frown but he spoke before Bakugou could interrogate him further.

“Shouldn’t we hand this villain to the police?” Izuku deflected. “I knocked him unconscious but who knows if he’ll wake up soon.”

“— Hold on, why are you holding your chest like that?” Bakugou interrupted. 

Oh, shit. Midoriya quelled the panic inside him. He doesn’t want them to see him like this.

“Nothing, I just like this pose. I mean, it’s a bit chilly. Hugging myself is conserving heat and I know there’s no snow anymore but if you check the weather report, the temperature’s low and don’t you feel a bit cold? The uniform isn’t exactly —”

“Izuku, what are you hiding?” Bakugou demanded. And uh-oh, first name. He’s definitely screwed now.

Midoriya refused to look at him. He felt blood rushing to his face and embarrassment flooding his senses. 

Bakugou grabbed his arms and,

Lo and Behold, Pro Hero Deku’s milky nips is on display.

(Or rather, his milk stained chest. Luckily, his costume isn’t white.)

The hard nubs are standing up, two tented peaks in his uniform. A dark patch surrounding it.

Fucking embarrassing, fucking Kacchan.

Midoriya jerked his hand away from his mate’s grip to cover his chest once more.

“T - That’s alright, Mido. The same stuff happens to all omegas.” Kaminari attempted to comfort the red-faced man.

“Yeah, if Kaminari gets pregnant, he’ll likely have the same incident too.” Todoroki added, making the lightning omega flush.

“And it’s natural, you’re nurturing your baby so it’s nothing to be embarrassed about.” Kirishima commented. 

Midoriya could only weakly nod his head. 

A sudden rush powerful scent invaded their noses. It felt hungry, possessive,

Horny.

It was obvious from the subtle smoky, sweet undertone that it was from Izuku’s alpha.

“Dude! I so don’t need to scent you thirsting for Mido!” Kaminari complained.

Kirishima pinched his nose, “We’ve had enough of this back at UA. Damn, the thirst is strong, bro.”

“...Go home, you two. We’ll handle the clean-up.” Todoroki suggested.

Bakugou didn’t need to be told twice. He pulled his husband away and they walked away from their friends and the unconscious villain.


***

K - Kacchan!” Midoriya moaned as his mate tweaked his nipple. A pleasant ache ran through his body as the alpha pinched it and more milk overflowed. 

“Some - Someone might see us, nngh!” 

But Bakugou didn’t relent, he thumbed the hard numbs more and lapped at the trail of sweet juice that poured from it. His hot tongue closed around a nipple and he suckled on it, making Izuku whine and clutch at his back.

Slick dripped out his hole, the alpha’s ministrations turning him on. Judging from the smug smirk on Bakugou’s lips, he must have noticed it too. 

“Want my knot, Deku?” 

“We’re in an alley! We can’t possibly — oh, fuck! Fuuuck, Kacchan!” The omega howled as his mate pinched his highly sensitive nipple while his other hand travelled down Izuku’s ass and pressed on the fabric right where his dripping hole is. The cloth rubbed against his entrance as Bakugou fingered him through it.

More milk flowed from his chest, and Bakugou lapped it down noisily.

There’s a bulge in his trousers, a cock eager to sheathe itself into the warmth of  Midoriya’s ass. Ever since his mate started lactating, he found him even more erotic than ever. His tits had already been sensitive even before pregnancy and after they had their baby, the omega can literally orgasm with just his nipples.

And Bakugou loved playing with his omega’s tits.

“Izuku,” He panted in the shorter man’s ear before giving it a playful nip. “Can I finger you?”

Bakugou pressed down on Izuku’s hole, feeling its rim flutter. “I’ll knot you later at home.” The alpha promised.

Izuku can only pant, and moan as his husband continued mercilessly teasing his body. He’s tempted to use Full Cowl and push him off. Straddle him and ride his dick to completion.

But sneaking away back to their house while knotted to his alpha is impossible. The paparazzi will have a grand time coming up with headlines if they get a shot of them in that state.

“I - Inside, Kacchan. Your finger,” Izuku whined. He craved something filling him, rubbing that spot that makes him see stars.

His alpha chuckled and mashed their lips together. He unzipped the clothes and manoeuvred Izuku enough to position him comfortable. Muscled, fucking gorgeous thighs wrapped around Bakugou’s waist.

The rough pad of his finger carefully massaged around the wet, tight ring. He groaned at the amount of slick his omega is producing. Damned erotic nerd.

Gently, he pushed a finger inside, wiggling it to locate the tiny bump of his husband’s prostate. When he felt it, he massaged it, gifting him with the pleasured cries of Izuku. The arms around his hugged him closer as he added another finger inside. He curled it upwards, and kissed Izuku as the latter’s voice grew louder, desperate to cum.

Izuku moved his hips and fucked himself on Katsuki’s fingers. His dick and nipples rubbed against the black fabric of Katsuki’s clothes. It’s an overwhelming amount of pleasure and just the right amount of pain.

He clenched down tightly on Katsuki’s fingers as white ropes of cum shot out of his dick.

Catching his breathe, he heard his his alpha curse and laugh. He dropped his shaky legs from Bakugou’s waist and leaned on the walls for support. He stared at Katsuki, wondering what’s got the alpha amused.

You fucking erotic nerd!” The alpha grinned manically, a dangerous glint in his eyes. He gestured towards his torso and that’s when Izuku noticed. Kacchan’s soaked with breast milk, cum, and slick.

“We gotta fucking do that again at home. You’ll ride me and I get to watch you cum from your tits, dick, and ass.”

Midoriya gulped. Good fucking luck to his body.

 

Notes:

thank you for reading this filth.
it’s my first smut for the pair and fandom.

kudos and comments are highly appreciated 💖