Inko comes back.

They heard the front door of the apartment open, and Inko called up, "Izuku, I'm back!"

"Ah, okay Mom! By the way, Momo's here!" Izuku called back, trusting the altered memories to make sure Inko saw no issue with Izuku having company.

"Oh? Well, you two have fun! If you need me to make myself scarce again, just make sure you both use protection!" she called up teasingly.

"Mom!" Izuku yelped, his face lighting up like a Christmas tree.

"I'm just teasing, dear!" Inko was laughing. "But seriously, do keep protection handy in case something happens later!"

Momo was laughing at Izuku spluttering and looking like he was going to pass out from sheer embarrassment at any moment.

"...for a genie who claims to be a submissive,not sure seem to be enjoying my pain way too much," Izuku tried to joke quietly to Momo and defuse his own embarrassment.

"Heh, sorry Master, but as a genie, I've got a sense for your wants and needs. As such, I know you want me to just be genuine and not be a constant yes girl. Except maybe in bed," Momo teased, before giggling more at Izuku's renewed blushes.

"Just... How about we study or something, now that everything is settled?" he asked as Inko went about making dinner downstairs.

"Of course, Master," Momo nodded. "...side note, when we do start getting naughty, we won't need protection. My magic will ensure no STDs or "oopsies,"" she noted. Izuku buried his face into a nearby pillow and groaned.