After some consideration, get on all fours to fuck them.

"So... Master... What's next?" Ochaco asked eagerly, gazing at him intently, already looking forward to having another command to fulfill.

"Give me a moment to think about it," Izuku mused. "Both of you, present your tits while I weigh my options," he then ordered.

"Okay~!" they simultaneously chimed as they placed their hands behind their heads, jutting out their chests.

"Oh!" Ochaco moaned as Izuku reached forward, cupping one of her boobs. With his other hand, he did the same thing for Momo, who similarly gave a sigh of delight.

"Oh yes, do you like the way our titties feel?" Momo purred salaciously.

"Yeah, I do," Izuku nodded, still thinking about what he wanted to do. He intended to make love to them both, the question on his mind was, what position did he want to have them in when he did? After a moment of consideration, he came to a decision, and nodded to himself. "Both of you, get on all fours, and get ready for me to fuck you," he commanded.

"Yes, Master!" they both declared and quickly turned to face away from him, getting on their hands and knees, their rears presented. Momo glanced back at him, prompting Ochaco to do the same, and they were both wearing radiant smiles, Momo giving her butt an enticing wiggle, Ochaco following suit.

"There's no need to worry about unintended consequences, right?" Izuku asked, getting behind them as he caressed their backsides.

"Even if we weren't in a lucid dream, no, Master," Momo smiled. "Genies can't get pregnant unless their Master explicitly wishes it. You might have to make a wish for Ochaco though."

"Oh, genies can get pregnant?" Izuku queried, continuing to rub their butts.

"We can, though the offspring is human," Momo nodded. "Though they might be able to use a little magic, genie reproductive material uses the former human genetics."

"Makes sense," Izuku nodded, considering who to fuck first.