An explanation and some more fun!

"It'll probably be easiest just to show you...Mira, switch," he decided he had "tortured" her human self enough for now, and snapped his fingers.

Still laying on the chair, Mira gasped and shuddered as her mind expanded and her body subtly shifted back to her genie self. Subtly, until her legs dissolved into a tail and she floated off the chair, anyway.

"Mhmm...Master!" The genie stretched her arms over her head, breasts jiggling slightly at the motion. "That was phenomenal! Every wish you made was like a small orgasm even before we had our little orgy! Even my memories locking and unlocking is awesome. Especially when I got stuck in a loop for a bit. We need to do that again sometime..." She smiled at the less-than-shocked pair of Izuku and Ochako. "Nice to actually meet you guys! I'm Mira the Sex Genie!"

"Hi, Mira!"

"Hello! Do you remember everything that just happened?"

"Yep!" She tapped the side of her head. "It was all in here the whole time. I just think it's super hot to have my mind controlled like that." She shivered with grin as she re-remembered her afternoon.

"Oh. Good for you?" Izuku said uncertainly. Ochaco had paled a bit before pasting a small smile on and gave a thumbs up to the crazy genie.

"Thanks!" Mira giggled.

"Didn't you forget to mention you were my normal, human, roommate this morning?"

Mira crossed her arms and pouted. "I may have been at least two of those things before the Lamp chose me."

"Chose? It hit you on the face!"

"It picked the prettiest landing spot it could find!"

Izuku and Ochaco watched as Master and Genie playfully bickered their way through an explanation on what had led to all this happening. The younger couple caught each other's eyes and exchanged a grin, holding hands as they had the same thought.

"Cuteee~" Ochaco whispered excitedly.

After a few minutes, Mira's eyes lit up and she bobbed in place. "What do you think about trying out the opposite sometime, make me forget I was ever a human for a while~"

Markus considered that. "...not right now, we have guests over." He turned and gave the two new harem members a very detailed examination.

"Then..." Izuku blushed, not even thinking of covering himself. "What are we doing now?"