Someone wants to join voluntarily.

Several days later, things had mostly gone back to normal for the class, barring some extra security measures.

"Hey...Deku?" A feminine voice came from behind Deku as she was walking to class that morning.

She turned, seeing...well, nothing at first, because she was focused on eye-level. A split-second later though she saw the floating uniform and gloves. Toru Hagakure.

"Oh...hey Hagakure. What's up?"

"Can we talk, in private, before classes start?" The girl sounded nervous.

"Sure..." Deku looked around and motioned to the nearest girl's restroom.

They slipped inside and doublechecked they were alone, before Deku turned back to the invisible girl. "So what did you want to talk about?"

"Well...you know how you can exchange quirks?"

"It's...complicated. But yes, obviously."

"Right, um...of course you know...but I mean...I was wondering...could you...do that for me? It's temporary right?"

Deku was surprised but recovered quickly. "It can be...but there's a lot to it. We um...would have to be linked and you may not like what that entails. And then your quirk would...as best I can understand it, be part of my quirk. I can use a copy of it, and I can give out copies to anyone else I'm linked to, or revoke them, at will, but only 1 at a time per person,"

"So I'd have to ask you whenever I wanted to change back?"

"Yeah...well...there's a way to let you do it at will but...that's even more complicated. You'd need a copy of my own quirk, and that comes with...well...this." She motioned to her body, particularly her breasts.

"O-oh...wait, what does your quirk have to do with that?" Deku was almost 100% certain the girl was blushing, though she couldn't see it.

"Like I said, it's complicated. I'd rather not....explain it all unless it's necessary. Sorry if that's not what you..."

"I-I'm still interested..." She was definitely blushing now. "If you're willing."

"Why? You're ok with me having that kind of control over your quirk?"

"Well...I...I like my quirk. It's useful, but...but I can't turn it off. I don't even know what I look like anymore. I haven't seen my own face or even taken a real picture since I was 4..." She was far more somber than Deku had heard her before, though admittedly they hadn't spoken much.

"Oh...I guess I can understand why you'd want to...at least take a break from it I guess." Deku sighed. "Alright...we definitely need to talk more before you make a decision, but...If you're interested, you can come to my apartment this evening. If, once you know everything involved, you still want to, we can link then."

"Oh...your apartment? Won't Tsuyu be upset at you having another girl over?"

Deku stammered "H-how does everyone know we're together."

"You're not very subtle. Sorry."

"W-well anyway, no, she won't mind, here..." She typed up a quick text: _Hagakure might come over this evening to talk about my quirk, _and showed it to Toru as she pressed send. "...see? She...knows what to expect, with my quirk. But we should get to class before we're late. See you after classes?"

Toru may have nodded, but Deku wasn't completely sure based on the motion of her outfit alone, but she did, after a moment, respond verbally. "Sure."

"Wow...that's not what I expected at all." Toru's gloved hand was covering what Deku assumed was her mouth as she finished explaining what her quirk did to her body. "But I still don't understand why...don't physical changes from quirks usually have something to do with the quirk?"

"Well...It does..." Deku blushed brightly. "Because well...the way that I...link with people is through...um...through sex."

"Ohhh that makes...wait what!?" Toru practically flew out of her chair, tripping and falling over in the process, before pulling herself back up onto the couch behind where she'd fallen. "T-that's why we're here?" Toru stammered wildly. "Y-you said Tsuyu wouldn't mind!"

"Only if you still want to now that you know..." Deku said quietly. "...and she won't. She knows what my quirk involves and is okay with it. You wouldn't be the first person... I have...6 quirks total, and Tsuyu was first."

"Six?!" Toru's voice squeaked.

"...with Tsuyu we didn't know I could copy quirks at all yet... then two of them were...experiments, I guess, I didn't know how my quirk worked yet. They were actually in similar situations to you, but worse...they wanted their quirks gone and were willing to do whatever it took. And the fourth and fifth...well, that's private."

"Oh my god...are they classmates?"

Deku wasn't sure if this was for gossip or just to ease her concerns, but either way, her face answered for her as her blush deepened.

"Oooh, wow." She giggled. "It's been like...two weeks. You move fast." She went quiet for a moment. "And now you have me here too..."

"You don't have to do anything if you don't want to...but that's how my quirk works. I can't change that."

She was silent for a long while, but eventually. "What...what exactly do we need to do."

"W-well um...technically...I have to...make you um...orgasm."

"W-wait we don't...have to do anything else?"

"No...not unless you want to."

"I'll do it..." Toru said quietly.