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They've been dating for a month before sex comes up.
A month of dinners filled with debates about topic after topic allowing Toshinori the chance to hear raw passion in Shouta's voice. Movie nights filled with quiet, heavenly, laughter from Shouta as the movie plays on no longer the focus of attention. Of snuggling on the couch while grading the students' papers and then looking up to find Shouta against him dead asleep. The month was without a doubt wonderful and beautiful in its own way.
….but Yagi would be lying if he said he didn't dream of more.
Dreams of fucking the other full of his cum. To make the other gasp and scream with pleasure. To wring orgasm after orgasm from his boyfriend until tears drip down those tired eyes and he's nothing more than a moaning little mess. The very chance to worship his little kitten like the other deserves.
But he was willing to wait. Willing to wait until his kitten was ready for sex. If he ever was Yagi wouldn't push. He loves Shouta. Sex doesn't need to have a place if the other doesn't want it to.
But when it does come up it's well worth the wait.
His Shouta has a cock and a cunt. He barely listens as Shouta says his parent's quirk indirectly affected their gender leading to them having complete fluidity. And, to Yagi's growing joy, it seems Shouta inherited it to the extent that his boyfriend has both. Which is why the subject of sex didn't come up sooner. Apparently the previous men his kitten dated didn't appreciate him also having a vagina. And a working one at that.
Stupid of them really. But hey their stupidity is Yagi's gain. After all if they had stuck with Shouta what chance would Yagi have with him? So he's somewhat thankful they dropped his kitten so quickly upon finding out. Especially since upon realizing Yagi wasn't bothered by it they immediately had some of the best sex in Yagi's life.
But….but since finding out Yagi's dreams have slightly changed.
He still dreams of fucking Shouta nice and full. His cum stuffing the other (cunt ass doesn't matter). His kitten moaning around his cock drunk off his cum while his hand plays with the plug keeping him full. Those dreams don't change. A few even end with him whispering how beautiful Shouta will look fat with their child. How wonderful their child will be because they'll be part Shouta.
No...no those dreams are fine. But they don't come as often now that he knows. No the dreams that come instead are….darker in nature. Dreams that he's slightly ashamed to admit turn him on more than the others. Dreams that he thinks about when he's fucking Shouta. Dreams that are quickly becoming all he can think about.
Dreams of getting Shouta pregnant...with his own sperm.
"Nori p-please I wanna cum! Please let me cum Nori!" His kitten gasps out with each thrust against his prostate.
"Then cum Shouta. I'm not stopping you." His smirk is devious as he speeds up his movements.
"B-but...my…-"
His pleading is interrupted as a particularly hard thrust against his prostate finally does it and he cums with a loud moan. He shivers in Yagi's hold as he feels his cunt start to fill from his own cum. Whimpering at the strange fullness he goes to move Yagi's hand from where it's holding his cock partly in his cunt only to gasp as another hard thrust knocks the wind out of him.
"Don't be rude, kitten. I haven't came yet. I'll take it out after I finish." He punctuates his words with a few more hard thrusts bringing more whimpers from his kitten's mouth.
That's one of the kinder renditions of the dreams. The one where Shouta is awake, aware, and goes with it. Most...most aren't that kind. Most involve his kitten being drunk and confused about what Yagi is doing. Others have him being asleep and waking up in the middle of the act only to be trapped as Yagi finishes regardless of his cries.
Nearly every night he awakes from those dreams hard and aching. Shouta sleeping next to him unaware of his boyfriend's desires. Unaware how badly he wants to see that cunt of his dripping with his own cum. Or how hard it makes him at the thought of Shouta pregnant with his own child.
The thoughts are maddening. How perfect a child solely his loves would be. How easy it would be to do. The methods and plans that would make this possible. But the strongest thought? The one that screams the loudest in his head when he wakes up? The one that ultimately convinces him to do it? The one leads him to actually making a plan?
How his kitten doesn't even have to know it's only his child.
Because why would he have to know? It's not like it's his kitten knowing what Yagi's done is the part that makes him hard. It's the act itself and Yagi's knowledge of it that makes his cock leak. His kitten can think the cum is his and even think the kid is his. Because Yagi will know the truth. And that's all that matters.
Happy with his logic and satisfied that his greatest fantasy is about to come true he goes about to enact the least upsetting method.
Which leads to a few days later with him pulling two very special toys from the packaging they came in. Careful to remove any identifiers on what kind of toy they actually are beyond the store logo he then goes to show them to Shouta. His kitten looks surprised but interested when he recognizes the logo.
"Quirked Sex Toys? I didn't realize our sex life needed that extra incentive." His voice isn't insulted, just curious.
"W-well...heh...I figured with how often I'm working as All Might there are times in which… you might um miss me." He keeps his voice nervous knowing it will help sell the lie.
"Miss you huh? Is that how we're wording it?"
Keeping silent he watches as Shouta picks up one of the toys. It's a decently sized dildo maybe slightly bigger than his kitten's own cock (it's the exact same size he wanted things perfect) and it has a hole at the tip like a slit. Putting it down, Shouta then grabs the other one rotating it in his hands as if to figure out what makes the simple fleshlight special.
"All right I give. What makes these two worth the effort? They just look like a dildo and fleshlight to me."
"W-well the fleshlight is quirked to feel like the real thing so it enhances the experience...and the dildo….it uh...it has both a stasis and sensor quirk on it." He doesn't even need to hide the excitement in voice as he describes the "quirks" on the toys.
"The stasis is for storing your cum in it isn't it? Keeping it nice and warm? So that when I fuck myself with it I can really get the full experience?" His kitten's voice is so sultry as he taunts Yagi with the toy.
Knowing that nodding will help his case better than speaking he doesn't say a word. Instead he fakes a blush and looks down. He smiles hidden as Aizawa laughs and goes back to looking at the dildo.
"You can be so shy sometimes Nori. Anyway where's the release button on it? Can't really get the happy finish if it doesn't fire."
"That's where the sensor quirk comes in handy. The toys work in tandem. When you cum in the fleshlight the sensor is set off and temporarily releases the stasis quirk in the dildo. Once you finish cumming though the stasis goes back into effect." Please let him believe the lie please let him believe the lie please let him-
"Sounds like fun," smiling at Yagi he tosses the dildo to him and grabs the fleshlight, "why don't you go fill her up and we can test to see if it's worth the money you spent."
Catching the dildo he gives his kitten a dopey smile before running off to the bathroom. Cock hard and leaking in his underwear he nearly squeals with how well that went. Deciding to clean the thing to waste the time he'd use to "fill" it he still can hardly believe he's come this far.
Sure it's only the first step of his plan but that doesn't mean he wasn't worried he wouldn't even get that far. But he has! Shouta bought the lie (only because who would think the unnatural thought that their boyfriend wants them to cum in themselves) and wants to play with the toy. Then after his kitten has gotten used to the toy he can enact stage two. Then it's just a matter of-
"You done yet Nori?" Shouta's voice calls through the door telling Yagi he's taken long enough.
Sending back the affirmative he leaves the bathroom and comes into the room only to freeze at the beautiful sight before him.
His kitten is kneeling on the bed with his ass in the air. Fingers thrusting lazily preparing his ass for Yagi's cock. His cock soft but leaking as it sways with his movements. And his cunt! It's so wet and open. Practically begging for something to go inside it. Licking his lips, he walks forward until he's standing by the other.
Freeing his cock from his underwear he watches enraptured as that hand that was stretching himself out pulls out and grabs the fleshlight. Holding the toy just below his cock Shouta gives Yagi a look which he quickly interprets. Lining up his cock with Shouta's ass and the dildo with his cunt he gives a sweet smile before pushing in both at the same time. His kitten follows suit and his cock sinks into the fleshlight.
Moaning at the feeling of being so stuffed Shouta can barely stop himself from cumming immediately. Holding out with shear force of will he breathes deep before starting to thrust into the toy. Yagi takes that as his cue and starts thrusting as well. Gasps and panting fill the room as Shouta is brought closer and closer to orgasm. All the while Yagi is watching hungry and desperate to see his boyfriend cum inside himself.
"N-Nori almost there wanna cum wanna cum" Shouta begs his movements getting faster to match the pounding Yagi is giving him.
"Then cum kitten.." Yagi whispers in his ear as he continues to slam his cock against Shouta's prostate.
Losing himself to the pleasure, Shouta gasps as his orgasm arrives and almost immediately he feels cum shooting into his cunt from the toy. Moaning he chases the feeling of his orgasm hoping to make the toy keep cumming for as long as possible. All the while Yagi fucks him at a near brutal pace, wanti-no needing to drain Shouta dry. To keep him cumming until his own cum leaks out from around the dildo and drips from his pussy's lips.
So focused on his goal he has no idea his own orgasm is coming until it hits. He seats himself deep and bites Shouta's neck as his cock spurts rope after rope inside. As he cums he smirks into the bite as he feels his kitten cum again. Finally when they both stop they lay there panting.
Or they were until Yagi started thrusting again bringing a whimper to Shouta's lips.
"A-ah! D-don't stop….keep going w-wanna be so full with you…" Shouta gasps out as Yagi continues.
"Of course kitten."
….
It takes a few weeks before he feels confident in enacting stage two of his plan.
A few weeks of watching his kitten fuck his own cum deep inside his cunt (so deep some of it must have reached his womb). Secretly laughing every time his boyfriend calls him gross for eating "his" cum from his kitten's cunt. Feeling so lucky to see his desires in reality and not just dreams. But no matter how pleased these last few weeks made him, he'll be happier after he completes stage two.
He waits until Shouta's not home before going into the bathroom. It's not hard to find what he's looking for. Top shelf behind the mirror right by one of Shouta's spare eye drops.
His kitten's birth control.
He takes it out and goes into the kitchen where the lighting is better. He sets it down on the counter and proceeds to take a ridiculous amount of pictures. Each photo documenting the parts that make Shouta's medication recognizable.
Some of the box. A few of the packaging holding the pills. And of course the most important, the pills themselves. Every word, shape, texture, and color documented in pictures so he can commision a perfect fake.
Pleased with his progress he puts the birth control back in its place and promises the next time he sees it, it will be as he tosses it.
Taking one last look at the pictures he took he gets dressed in the disguise needed for the next part in this stage. His stature is difficult to hide (he's 7.2 ft tall and big as he is tall he doesn't blend in) but he does have a method. It relies heavily on the public's desire not to look at those with heteromorphic quirks. Great strides have been made for those that look less than human but even now those with obvious no humanoid traits tend to be ignored.
Terrible but it does work in his favor.
Bulky clothes with a large lump hanging in the back implying a tail. Specialized gloves designed to look like pale gray skin with sharp talons. A wild mane of hair bright red free and somehow not ratty looking. And for the final touch a face mask to hide his famous smile. Staring into the mirror and not seeing himself he considers it a win and leaves the house.
From there he makes his way to the more darker parts of the city.
Specifically a pharmacy with the lights half out. Entering it he walks around aimlessly for a bit before going to the back. At the window a woman with eyestalk eyes stares back a wide smile on her face. Walking up to her he coughs before laying down a sizable amount of money on the counter.
"Well I see someone doesn't beat around the bush," Her voice is chipper but not in a sickly way as she drags the money towards her, "what can I get for you today?"
He pulls out his phone and opens up his pictures. Showing off all the ones he took of the birth control he then sets his phone down for her to get a better look at the details. She hums as she takes in each image and writes out a few notes then she hands the phone back to him. Leaving the window he hears rustling for a moment before she comes out with three labeled boxes. Each looking exactly like his kitten's birth control.
"That's a difficult brand to copy so my options are limited. I have one that's a long term poison. Takes about a month but looks natural when it's all done." she holds up the one with a skull in the corner smile still in place.
Frowning he shakes his head and watches as she puts it back down no change in expression.
"Alright what about this one? It acts somewhat as a sedative. One pill of this each day and it doesn't matter how strong a will they have they'd be putty in your hands."
Shaking his head again she puts the box down and frowns. She stares at him for a moment before pushing the cash back towards him. Just as she is about to put the boxes back he grabs her hand and points to the last labeled fake.
"Look buddy I doubt you want those. They're just sugar pills. Hell, I made them as a test run for if I could get the appearance right." her voice is annoyed and frustrated.
Grabbing the pills labeled with a candy drawing he pushes the money back towards her before leaving. He may have heard the woman call him a weirdo as he exited but he's too excited to notice. He has the fakes and that's all that matters. Heading home he ignores all the somewhat disdained looks his disguise gets and focuses on the last part of this stage.
He gets home, thankfully, before his kitten does. Removing himself from his disguise and hiding it like before he goes back to the bathroom. Opening up the mirror to reveal Shouta's birth control he's just about to pick it up when a thought hits him.
Shouta's halfway done with this prescription. If he switches it now he'd have to remove half of the sugar pills and get rid of them so his kitten doesn't see. Plus he'd only have about two weeks to get the other pregnant.
….but if he waited for the start of next month….
If he waited until Shouta starts the next month's prescription...then he wouldn't have to waste any of them. All the sugar pills could be used giving him an entire month of chances to impregnate his kitten. An entire month of filling that cunt with his own seed just watching to see if it catches.
He can be patient, it's for his kitten afterall.
….
The month is half over and they haven't fucked once.
The start of the month started so hopeful. He switched the real with the fake and threw away the actual birth control the first night of the month. An entire month to get his kitten pregnant. An entire month to see that cunt stuffed full of his own cum.
But instead everything was going wrong.
Ms. Midnight sent in Shouta's information in the form of an application to UA. And the current principal accepted! Like it's not that he doesn't think his kitten isn't qualified to teach the next generation of heroes….it's just….he's been so busy. He leaves so early in the morning to start on paperwork he needs to fill out before starting and then he doesn't come back until it's so late they both just want to sleep.
And then on top of that Yagi's been just as busy.
Press conferences for villain attacks he was barely present for. Talk show hosts still trying to find out his quirk (if he hasn't answered yet you'd think they'd give up). Nighteye bothering him for not making enough public appearances lately. Or because Yagi hasn't let him use his future sight on him recently. Or some other complaint that ultimately is just him being jealous Yagi isn't spending every second with him.
So they've both been busy. So busy that half the month is gone and along with it the sugar pills. And as each day goes by without even a single fuck Yagi's getting worried.
Worried that the pills will run out and it will be for waste. Worried that if too much time passes Shouta's body will react in a way alerting him to the fact he's at risk. He's even worried that Shouta will begin to suspect what the toys really do. Just so much unending worry.
And to top it all off, the one day Yagi's free and Shouta's somewhat free the other UA teachers convinced his kitten to go drinking tonight instead of coming home early. So instead of getting to fuck his kitten full of his own cum he's waiting at home for the other to come back….waiting alone on the bed wishing his kitten were there.
"N-Nori? I-I'm hooooommmmmeee!" Shouta's slurred voice calls from the living room.
Going to meet his apparently drunk boyfriend Yagi is surprised at what greets him.
Shouta stands in the living room slightly swaying clutching at his sleeping bag. As Yagi gets closer he can see how glazed and wide his kitten's eyes are. He watches as his kitten smiles drunkenly at him before starting to lose his balance. Catching him, Yagi is about to help his love to the bedroom only for something to fall out of Shouta's sleeping bag catching his attention.
...it's the fleshlight.
Looking at it then his boyfriend, Yagi takes in the bright blush (that has nothing to do with alcohol) forming on his kitten's face and decides to test something. Giving a dirty smile, he puts his hand down Shouta's pants and laughs when he feels the telltale feel of the dildo snug inside his kitten's cunt.
"My what a naughty kitten I have. Playing games like that at work." He whispers in Shouta's ear as he plays with the dildo.
"Mis-missed havinng y-your cum i-in meeee," his kitten pouts as he gives another laugh, "be-besiiiiddes I-I was caaaarefuuuullll. N-nobody saaw."
"How did it feel kitten...to go all day knowing you my cum (your cum it's yours and you look so pleased) inside you? Did it make you feel dirty kitten? Every time you spoke to someone, knowing they might hear the sound of all my cum inside you…" he pauses lifting up Shouta and carrying him to the bedroom so he can get a proper look.
Shouta moans as they move and slightly humps Yagi up until he's placed on their bed. Giving another pout he wiggles around as if to help Yagi undress him but it only makes it more difficult to. But eventually Yagi does it and Shouta is laid bare before him.
And what a sight it is.
His cunt is glistening as it slightly pulses around the base of the dildo. Looking closely Yagi can see a slight bump in Shouta's stomach implying that his kitten had been filling himself up all day. And isn't that a wonderful thought. That his kitten has filled himself with so much of his own cum that a bump formed.
"Look at you kitten. Absolutely beautiful. Can I fuck you like this?" He whispers, still not taking his eyes off the sight before him.
However it's not a drunken yes that answers him but a tired hum. Looking up he finds that in the time he was observing his love, his kitten had fallen asleep. Licking his lips, he keeps his eyes on Shouta's face while he reaches down to play with his clit. He smiles when the only response to the stimulus he gets is Shouta just gasping and snuggling into the sheets near his head.
"Shhh kitten….Nori's just gonna have a little fun...like you did today at work…"
Pulling his cock out he strokes it as he slowly stretches Shouta's ass. One finger, two, then three all pushed in never taking his eyes off the real prize. Finally when he's sure the other has been prepped enough he pulls out his fingers. Eyes briefly staring at that fluttering hole, he lubes himself up before sliding inside.
He bites his lip to keep the moan quiet as he bottoms out.
Seated and still, he grabs the dildo's base and pulls it out. Though before any of his kitten's cum can escape he slightly bends Shouta's dick and pushes about half inside. Grabbing his own cock before he bursts, he takes in the sight he's been dreaming off for months now.
He watches entranced, as his kitten's cock gives a little throb which is answered by a little pulse in his cunt. Practically drooling, he starts moving the cock in mock thrusting. After a few minutes of this with no change he starts playing with the other's clit. Surely if one cums the other will too.
All the while whispering how pretty Shouta's child is going to be knowing they're only going to be his.
Finally after several minutes a small moan escapes from his sleeping love's mouth and he sees that little bump get bigger as more cum is added to the mix. His kitten's orgasm the final straw, he cums releasing into the other. Patting Shouta's stomach he removes the other's cock and replaces it with the dildo. Pulling him close, he drifts off to dream of it again and again.
….
A pregnancy test and nine months later Yagi watches as Shouta holds their (his she's only his) daughter Eri and swears to do this at least one more time before getting the other pregnant himself.