「Pup Donor」
InaTodo+BkDk, Omegaverse, intersex omegas, pregnancy

Shouto becomes very excited when he realizes he and Izuku's heat cycles start syncing up and comes up with a plan - to get pupped at the same time and raise their kids as best friends.

To Izuku though, there's one problem: "I'm not dating anyone."

Shouto huffs in amusement.

"Like that's such a problem - you have alphas panting after you all the time."

Izuku's politely confused face would be cute under most circumstances, but right now it's aggravating that the slighter omega not know what he does to people, that he makes betas like Iida and Ura

halfway feral with the need to protect, and even other omegas like Shouto himself entertain fantasies of mounting the plump, freckled ass, see if he can wreck his best friend with his tiny omega cock or, even better watch his boyfriend (or his brother or his even his father)

fuck and knot him so good.
Instead, he sighs. "If I find you a suitable heat partner, would you consider?"

When Izuku nods his assent, Shouto resolves to find his best friend the second best heat partner to father some pups.
(The best being his own alpha, of course)

/.../

"Bakugou," Shouto says a few days later, the former remedial class heroes working together on a rather mild patrol, "I have finally found the perfect way for you to deal with the UST you have towards Midoriya."

Camie spat out the tea she was drinking, laughing at Katsuki's look

of shock and outrage. The taller blond growled. "No need to thank me just come to this apartment next Saturday." Shouto passes Katsuki a business card with the address scribbled on the back.

Inasa, recognizing the address is about to say something but Shouto turns to give his

alpha a smirk, playfully making a shush motion with his hands. The tall alpha keeps quiet and hopes his omega knows what he's doing.

Looking at Bakugou's glare at the card, Inasa really, really hopes...

/.../

Shouto and Izuku's heats hit like clockwork the next week and Izuku holes himself into the apartment the two omegas rent specifically for it, large enough that two omegas could nest and have their heats without seeing the other, but why bother? The two have been best friends for

years and Izuku never has never begrudged Shouto for having a steady mate (outwardly. If he's a little jealous, well. Any omega would be if they've seen that knot but Izuku is not a hussy and won't ask to take it. Asking Shouto to describe his partner's cock in detail? Totes did

that) and having fresh alpha pheromones, even if they aren't mated has helped tremendously over the years, way better than the stale stuff he used to buy as a teen.

A couple hours pass as Izuku makes up a nest before the door opens. The green haired omega looks up and blinks in

surprise to see Shouto alone. He's just about to ask when the other scowls, "Inasa couldn't get out of his patrol," he mutters, already stripping off his jacket. "It's you and me until sometime tomorrow then."

Izuku hums in consideration, already down to just his boxers, body

not entirely ensnared by his heat just yet. He watches as Shouto looks around the living room in consideration, sees the two distinct nests and huffs. "We're going to need more blankets to combine these two."

The other omega perks up at the thought, of nesting with his best

friend and hurries off to grab more, a wave of arousal following after. Shouto continues to undress and starts browsing through their assortment of toys trying to decide what he should use on the other when he gets back. By the time Izuku returns, arms laden with more plush

blankets, Shouto was ready, lube in one hand and a double ended dildo in the other. "Present for me."

Izuku follows the order instantly, getting on all fours and Shouto knows that the other omega is getting slicker. While Shouto has spent his life learning how to buck A commands

and orders, to make any decision to obey a choice, Izuku did not have that luxury. Sure, the green haired omega has suppressed the biological urge during work and his day to day business, but it's made him highly susceptible during his heats, taking even the lightest suggestion

as an order he must obey, the heat giving him pleasure as he submits. Shouto and Inasa have on several occasions used it to their advantage, making their friend come undone during heats. This time, Shouto planned to use it to prep the other omega to be bred.

"Good boy," he says,

a small smile crossing his features as Izuku shudders in pleasure, the smell of fertile omega permeating the apartment. He was absently lubing up the dildo. "Now I'm going to fuck your omega cunt right open and you're going to like it aren't you?"

/.../

"I can't believe you're going to fucking escort me to the place that half and half bastard wants me to go to."

"All the better to make sure you get there in one piece."

"And why are you all worried about whether or not I fuck Deku anyways?"

"Call it self preservation - if you

don't mate with Midoriya, I am never hearing the end of it from my mate."

"Ha? You know you're fucking whipped don'tcha?"

"At least that means I'm getting regular sex instead of using my hand every night!"

"Wanna say it to my face you fucker!?"

/.../

A smirking (albeit slightly singed) Inasa puts the key into the doorknob of the apartment, Katsuki sulking behind him. The taller alpha opened the door only to give the two of them a view of the debauched omegas inside. Shouto and Izuku were laying together in the oversized

nest in the middle of the living room, Shouto curled protectively over the slighter omega. Faint whispers of pheromones called out to the alphas and Katsuki found himself pushing Inasa further inside so he could enter the apartment, the door clicking shut behind them. The two

omegas hardly twitched st the sound, too fucked out Katsuki guessed, based on how raw Shouto's ass looked and the way Izuku's cunt opened around the head of a dildo the other omega must have used on him before they passed out. Inasa put down his bag near the door and then urges

Katsuki towards a side hallway that, he finds, opens into a kitchen. The broader alpha quickly starts puttering around, grabbing water bottles, jerky and fruit packs for nutrients. "No idea how long they'll be out for," he admits, "but they'll be hungry before they decide they

want our knots."

"Weren't alpha enough from the both of them were ya baldy?"

Inasa gives Katsuki a light glare. "You'll see when they wake up, you're going to be sore once they get to you."

"Fucking promises, this better be fucking worth it."

/.../

Okay then since we are about to get to actual smut territory...
Should Katsuki...

《Thank you for not going 50/50 everyone, sorry for the wait!》

Katsuki and Inasa get the chance to chat for another hour or so, with Katsuki making more substantive snacks than prepackaged calories and Inasa assisting by getting ingredients. It's just as Katsuki is turning off

the stove that Inasa hears small noises, signaling that one or both of the omegas are getting up. He heads out of the kitchen and Katsuki can hear familiar sleepy mumbling before the familiar form of Izuku, naked save for the fluffy blanket from the mega nest Katsuki had saw

earlier, flipped into one of the kitchenette stools.

(Katsuki is pleased by the fact that the omega was wrapped in 𝘩𝘪𝘴 iconic colors, but he wouldnt show it save for the smile at his lips).

Inasa comes behind, Shouto naked and wrapped around his alpha like a particularly

sleepy koala. Despite the warn out appearances, both omegas had the spicy sweet smell of heat tinging their normal scents. "Eat up nerds, we're gonna have a good time!" Katsuki says as he places a plate filled with peanut butter and chocolate mouse with fruits, vegetables and

crackers, food to help the omegas energy levels rise as well as be filling.

The moment Katsuki spoke, Izuku's head popped up from where it was laying on the table. "Kacchan!" His voice is tinged with awe, as if he couldn't believe the alpha was here in their heat apartment.

"Did Icy Hot fail to mention I was going to help you out?"

Izuku flushes but looks oh so very happy as he dips a piece of fruit in the dark chocolate. "Kacchan is going to breed me?" The nerd is a tad breathless, pupils dilating at the mere thought, pheromones flaring at his

excitement...

Only to be dashed when Katsuki, surprised by Izuku's question, nearly chokes on the bottled water he was taking a sip out of. "The fuck? No, I'll be using condoms, don't worry about any accidental knocking up." And Katsuki resumes eating, thinking that would be it.

He realizes he's wrong the moment he realized Izuku was sniffling, tears already trailing down his cheeks. "K-kacchan doesn't want me to have his pups," the nerd hiccups, scent going sour in his despair.

It instantly gets Inasa and Shouto's attention, the omega giving a very

alpha like growl at his friend's distress.

Katsuki is already out of his chair and crouching in front of the green hair omega, bracketing the smaller man with his familiar scent. "Oi, shitty nerd, what's wrong? You mad that I don't wanna ruin your life for 9 months carrying

a deadweight until it's fucking ready?"

"I wanna have a kid and when Shou said he found me the perfect heat partner and realized it was you... I was so excited!" More tears fell and Katsuki can feel them wetting his hands. "B-but then you said you didn't wanna knock me up!"

Katsuki gives an aggravated sigh. "I'm not some hothead alpha who only cares about sowing seed. If you want a pup, 𝘮𝘺 pup we are gonna do it right." He picks up Izuku, who's scent is already turning more pleasant, tinged with his arousal, and the blanket, and starts towards the

bedrooms, intent on finding Izuku's nest.

"We both nested in the living room!" Shouto yells from the kitchen.

Katsuki sighs and heads to the other room, Deku snuggled against his chest
"Fine, I guess we'll do it right with an audience then."

/.../

Katsuki plants Izuku gently into the mess of comforters, watching as the omega gets himself comfortable, stretching out. The alpha starts stripping, even as Izuku watches intently. The smell of arousal, slick, and heat permeate the small apartment, an inticing and heedy mix that

makes Katsuki forget all about the others just a hall away, more than able to see what's going on - all that matters in this moment is the way Izuku looks at him, wide eye and adoring, wanting nothing more than to be split open on his knot and fucked until he's knocked up.

This was a dream come true for the blond, although he honestly never thought he'd have the chance with their history.
(He and Deku were going to have to, ugh, talk about this. Later. Preferably after the shitty nerd was full and sated with his cum. Or after the heat haze ended)

Izuku mumbles beneath him, the spicy sweet scent of heat addled omega growing with each moment, as calloused hands start exploring his body. Something in Izuku makes him want to roll over and present, show off his leaking holes to the alpha he's always wanted, but Katsuki keeps

him lying prone in thr middle of the nest, eyes locked on his face.
"If I'm gonna pup you, we're doing this right - as mates, understand?"
Izuku can hardly formulate a response, that this has been what he's wanted ever since he learned of lust, of love and mates.
Shouto, from the

kitchen, pipes up, "Not a hardship seeing as he's been wanting to be mates with you longer than I've known him."

This got a sputtered "Shouto" out of Izuku, as well as a growled "The fuck Icy Hot" from Katsuki.

The half and half hero, undeterred, continued,

"Honestly, you should be awed Bakugou, as much pining as you've done over the years, I don't think it holds a candle to Izuku's shrine for you in his other room."

That was, Katsuki thought to himself even as he continued playing with Izuku's body beneath him, something he will

have to see after this heat. But for now, he was more interested in seeing how Izuku shies away meaning all that shit the other hero was saying was true. "So how about it shitty nerd?" He asks, voice rough with want.

"We are going to talk about this so called pining but that can

be after you make me yours Kacchan!"

That was plenty of incentive for Katsuki to lean down, canines ghosting over the slightly raised scent gland, relishing in the soft moan Izuku makes at the contact.
"Oh, I will, once I'm knot deep in you." His hands trail lower cupping

against Izuku's tiny omega cock and cunt. There's squirming beneath him as Izuku struggles and keeps, wanting more stimulation than what Katsuki's hand was providing. But Katsuki was methodical, it didn't matter how much the other omega had stretched his Deku out before he and

Baldy got there, he had to do it himself. One finger probbing within quickly becomes two scisorring. Izuku wraps his arms around Katsuki's neck pulling him in closer, mumbling his desires right into his ears.

Oh fuck it he was stressed enough. Katsuki moved away just a enough

to get a good look at his omega (and his heart did /not/ constrict at the mournful sound Izuku made), lining himself up with Izuku's warm velvet heat. It takes hardly a nudge for Izuku to open up for him, cock sinking inside and making Katsuki suck in a breath he didn't realize

he was holding. Being inside Izuku had to be one of the most glorious feelings of all; between the tight heat and Izuku's gasps of pleasures Katsuki allows himself to let loose, rutting into the omega and watching in awe as he sees his large cock get swallowed by Izuku's hole.

His fangs itch, wanting to bite down at Izuku's neck as he throws his head back in pleasure but no, not yet. His knot wasn't fully inflated yet nor was it buried within. Katsuki moved just a bit, trying to figure out just the right angle to thrust and make the nerd scream when a

large hand claps him on the back.

"I'm surprised you're being so considerate! Midoriya can take a lot more!" Inasa says from his side, the large alpha stripped as well with Shouto on the other side, an amused smile pulling at the omega's lips.

Katsuki almost wants to keep

fucking at the pace he had set thus far but between Inasa's seemingly intimate understanding of the needs sexual preferences (and Katsuki is nearly surprised that he doesn't particularly mind if this mated pair knew his Deku, even though he knows anyone else he'd likely rip their

throats out) and Izuku's own breathy whimpers for more, he swallows his pride just a bit and starts to pick up the pace. He's rewarded when Izuku makes a shout of pure pleasure as his knot sinks into him more, nearly locking them together.

"Kacchan, more!"

The alpha growls and

fucks into the omega like his life depends on it, hips snapping into Izuku as fast as they can, leaning over and into the nerd's neck, not quite biting into the gland. Katsuki rumbles deep in his throat, feels the knot catch inside Izuku locking them until it goes down. Izuku

howls at the feeling, pulls Katsuki in more as he cums. That's the alphas cue, fangs latching on as he marks his omega, a tentative bond forming even as he cums deep inside.

He feels Izuku shift a bit, pulling at Katauki's hair for him to lift his head. The blond follows the

movement and looks down to see Izuku looking a bit bashful yet hopeful at the same time. "Can I mark you too, alpha?" He asks.

Katsuki snorts even as he repositions, barring his neck in an unusual show of submission. Izuku leans up, omegan fangs ghosting at the scent gland.

"C'mom shitty nerd, do it and we have another round."

Izuku chuckles against his skin but does as he's asked, biting down. A tingle runs up his spine even as he feels Katsuki's cock within him pulse and gush out another spurt of cum into his womb. God, but Izuku wants this man

to pup him.

/.../

Inasa feels a bit bad, feels voyeuristic as he watches his coworkers mate but Shouto huffs in amusement. "About time," he smirks even as he crawls into his own alpha's lap, positioning himself just /so/, feeling Inasa's cock against his ass.

The other two are in their own little world, high on sex and omega heat pheromones and probably the starting of a mate bond and while Shouto is very happy for his two friends, "i want to get fucked now please."

Inasa chuckles, even as his hands reach down to curl around Shouto's

midsection, lifting the omega up just a tad so he was hovering over his cock. A finger pads against Shouto's hole, puffy from use earlier as another lays against his pussy. "Where do you want it?"

Shouto leans down, angling his body for where he wants it. "Ibwant your pups"

《Whoops this shouldn't have taken over a year, sorry! If you dont know or remember this thread here's the top link @ https://twitter.com/snakefujoshi/status/1134586839812194304?s=20
Now to sleep cause I gotta get up early for work OTL 》