The Following Month

Over the next month, Izuku and Inko learned a lot about their bodies.

For one, they were almost always down to fuck. Izuku’s bed had seen next to no use after the first week, as both had spent each night in Inko’s larger bed.

Second, Izuku had, indeed, grown a bit from their first copulation. Not too much, but definitely a measurable amount- As they found out when the non-stretchy shirt Izuku had bought prior no longer fit as well.

On the plus side, she wouldn’t be spending much money on bras- if any. Her back muscles supported her breasts perfectly, without any pain. Sure, they jiggled a lot, but as far as the Midoriyas were concerned that was a bonus.

Speaking of muscles, it felt as though both had gotten a little boost in that area as well. Izuku found her dumbbells easier to lift, even though her arms were slimmer (though still rather muscular), and even Inko felt a bit better.

Finally, the matter of their seed. While both produced the same sweet-smelling semen, Izuku’s was thicker and more flavorful (just another way she outperformed her mother). Neither had noticed any further effects from consuming it, and they weren’t willing to test it on anyone else, but they still enjoyed the taste.

Deku’s theory (which she hadn’t shared with her mother) was that this was some sort of mutated form of One for All. After all, All Might’s body looked far different when he used his Quirk, maybe this was something similar for Deku? Maybe this was the Quirk forming her into a better vessel for itself. The viral aspect could also have come from One for All- after all, this happened to her mother after consuming her genetic material, although Inko hadn’t gotten the full quirk.

That at least gave Deku the comforting thought that she hadn’t, actually, exposed the nice anti-gravity girl to the virus.

Despite how hot it would be.

That was another thing- both her and her mother had had some changed fetishes. At least, she did. Maybe her mother was just freaky beforehand.

Of course, her own hermaphroditic state was wildly arousing, as was the idea of spreading it. But she also found new love for anal (on the recieving end), paizuri, and most of all, hero/villain roleplay. The dynamics, the Quirks at play, the potential for sexy costumes… it all seemed so hot.

Speaking of costumes, she’d gotten a letter from U.A. about that. The school had a ‘costume subsidy’ program- provide design specifications and a quirk registry form, and a support company would make all the new students bespoke costumes.

There were a few problems with this for Izuku- most prominently, the Quirk Registry form. She was registered as Quirkless, and even if she could get it updated, it would probably be a process in which she revealed more than she wanted to about herself.

“Yeah, I have super-strength, but I also turn people into uber-horny dickgirls. How did I find that out? Uh….”

Would they believe her? Would they want her to demonstrate?

Still, it probably wouldn’t be an option. Which meant that Izuku’s costume would end up having to be homemade.

After talking to All Might about this conundrum over the phone (leaving out some of the more sensitive parts, namely the conversion aspect of her Quirk), he offered to contact a designer himself. “After all,” the hero said, “One for All’s not the most complex quirk. The only real thing your costume needs is durability. Can’t have it ripping to shreds whenever you throw a punch!”

To be honest, Deku found that idea really hot. But still, she declined. She’d become comfortable with her body within the confines of her own home, but sending her measurements and details to some designer she didn’t even know felt too mortifying.

It was Inko who came up with the solution- make the costume at home.

Deku had made a design before the entrance exams, but she felt it wasn’t as fitting anymore- not least because of her wildly different body type.

Inbetween bouts of sex, Deku designed and Inko developed. The basic concept of the design- a dark green bodysuit, with all-might inspired decorations- had stayed, but that was more or less it.

It was a tough decision Deku had to make. Midnight’s debut had resulted in legislation for how much skin a hero costume had to cover, but Deku could still go pretty light on material. Of course, skin-tight outfits had a charm all their own.

Direct skin-to-skin contact wouldn’t spread her condition- she assumed. So the only risk a risque costume would bring would be making anyone she touched a bit hornier. This meant the question was mostly one of personal preference.

A skin-tight outfit to highlight her curves, potentially protect her teammates, and maybe get some sexy clothing damage?

Or start with less clothing from the get-go, putting her body on full display with nothing more than a dark green bikini?