Talk to Inko Midoriya

There was no way he hide this. Whatever caused it left him with an absolute dump truck in the back and the less said about the front the better. He’d have to ask her and see if she knew why it happened. Maybe a second puberty was common in their family or something.

“Hey mom, do you have a moment to talk? Something … weird’s going on.” Sitting down on the couch, Izuku watched as she finished pouring herself a cup of tea in the kitchen

“Oh hello honey. Sure I have a moment, but if it’s about your Quirk then I’m afraid that I won’t be of much help.” Setting her cup down, Inko turned towards her son and saw the issue.

“It is about my Quirk and that’s not it. I also have something to say. I discovered my Quirk, I think its the same as yours. Though I guess it has some other side-effects, heheh.” With an awkward laugh, Izuku stood up, showing off his larger than before hips and ass. Holding out his hand, her tea cup flew into his hand.

“I know you must have a lot of questions about this but I need to say something first. That strengthening Quirk wasn’t mine, Im not at liberty to say how but someone was able to give me their Quirk. But just a bit ago my uh lower area started to change and now I have your ‘Centre of Mass’ Quirk or something similar. I don’t know how it happened, but I technically have 2 Quirks and no idea how.”

As he finished Inko stood up and walked over to him. Taking the cup and setting it on the table, she ran her finger along the side of his shorts. Feeling where the change started and stopped. His waist was still the same as was his calves. Everything covered up had transformed.

Hooking the waistband, she ran her finger along it until she came to a tag. Squinting, she let the band snap tight, rippling Izuku’s plump posterior.

Nodding to herself, Inko pushed him back to the couch.

Walking off with barely noticeable blush on her face, and distinct swaying of her hips, Izuku was left wondering what she was doing.

“Put this on.” Izuku turned around and got a face full of bra. Pulling it off, he looked at the lime green bra that was thrown at him.

“What?”

“I said, Put it on. I think I know what’s going on. If you want to find out too, then listen.” Inko insisted as she peeled off his shirt and sat down beside him with a small bag in her hands.

“Mom-“

“Don’t mom me mister. I birthed you, took care of you and raised you. Now put on mommy’s old bra, after we’re done, mommy’s going to have a long talk about this gifted Quirk of yours. Now put it on, otherwise I’ll do it myself.” Facing down the might of a mothers stare, Izuku complied. Sliding each arm through their holes, nothing changed until he clasped it shut behind him.

Like magic, his flesh rippled and morphed. Flesh bubbled and expanded, filling out the loose fitting bra with an ample bosom. Skin shifted hue and visibly changed. Resembling Inko’s natural colour instead of Izuku’s.

Smiling, Inko grabbed his chest and gave it a firm squeeze, earnings a moan from Izuku.

“Mom that feels-AHh~!” He was cut-off by Inko tweaking his chest through her bra.

“Mommy didn’t say you could talk. Now put your shirt back on. Make mommy enjoy it.” Nervously taking back his shirt, Izuku wore a luminescent blush. Sliding his shirt on, it barely contained his inflated chest.

“Now… take off the bra.” Following her orders, he clumsily removed the bra and returned it to her. As he did, his chest began to deflate, brushing against his shirt and sending him to the ground with an embarrassing face.

"Mo-" A finger from her silenced Izuku. Taking her bra back, Inko carefully tucked her bra back into the bag.

"So wearing clothing transforms you into them, based on the last time it was worn. I wonder if the baby clothes would still fit?" Inko licked her lips, thoroughly terrifying and slightly arousing Izuku. This was a new side of his mom, and he wasn't sure how to feel.

Thanks for reading, feel free to toss some spare coins at me, ko-fi.com/thatmaker Any suggestion or additions are welcome.