He explains while he fucks her!

"I'll explain while I take you from behind," he decided, and Momo brightened.

"Good choice, Master!" she clapped, and pulled Akemi into a kiss as they prepared to watch the show.

"Okay then," Jiro nodded, dropping down onto her hands and raising her ass, before turning around so her posterior faced Denki as he dropped to his knees. She shivered as she felt another surge of euphoria at doing what he told her to. "Unh... This feels so nice," she murmured.

"I'm glad you're enjoying it," he nodded, sliding his dick right into her folds. "So, you want to know what's happening, right?" he asked burying himself all the way to the root inside Jiro's pussy.

"Mmmnh, yes please, just don't stop fucking me," Jiro crooned, pressing back against him. She knew that she wouldn't normally be such a slut... But for the life of her, she couldn't figure out why it even should bother her to do something that felt this good. All the reasons she would have come up with before just seemed... Insufficient all of a sudden.

He nodded, and began to thrust his hips back and forth into her. "So... That girl right there?" He nodded towards Momo. "That's Momo Yaoyrozu. And she happens to be a Sex Genie..."

Jiro gasped out, both in surprise and pleasure. "A... Sex Genie?" she wheezed out. She gripped the carpet. "That's... Kind of crazy. Magic isn't a thing..."

"Well, what I'm doing technically isn't magic... Just a means of manipulating the fabric of reality in a manner that makes Quantum Physics look like Kindergarten stuff. I couldn't explain it even to the likes of Albert Einstein or Stephen Hawking even if I tried," Momo explained. "It'd be different if the Lamp ended up in a different reality of course. It tends to alter its methods to fit whatever reality it is in."

"...unh... What do you mean?" Jiro whimpered as Denki kept going, hitting a sweet spot.

"Apparently, Multiverse Theory is true, and the Lamp can travel through it," Denki chuckled. "It came to ours, and turned Momo into its genie."

"And I'm enjoying every second of it!" Momo chirped even as Jiro leaned forward, placing her face down on the floor, Denki gripping her hips as he kept going harder and faster into her.