Markus has a fun idea first...

Markus looked at the two, and smiled. "Tell you what. I'll tell you both later. How did you two get here by the way?"

"Um, we took the bus," Ochaco replied, blinking, wondering why he asked.

Perfect. That meant they didn't have cars to leave behind. It would be a bit of a dick move to just bring them home without their vehicles if they had them. And while Markus's enemies could confirm that he was not above dick moves, he reserved them specifically for said enemies. "And do you have anywhere else to be today?" he continued.

"Um, no," Izuku replied, him and Ochaco having had a day off to spend together.

Also perfect. "Genie Mira," he whispered to Mira. "I wish for Izuku to be wearing a golden collar, and Ochaco a silver one, each attached to a chain, and enchanted to compel them to follow whoever is holding said chain. Also, make it perfectly acceptable for them to be naked in public, and don't forget the parameters about kids not taking notice. And send their clothes back to their homes, fully repaired, and make sure no bystander questions the sudden appearance of the collars or anything else."

For a second, Mira was thrilled and ridiculously turned on as the wish registered to the hidden part of her mind. With a broad smile and a tingly warmth between her legs, Mira snapped her fingers. "Great wish, Master!" Then she twitched as her mind was scrubbed clean once again, slumping into her Master's arms. "Ahn~"

"Ahh!"

"Eep!"

Both Izuku and Ochako jumped in place as their clothes vanished in a flash and a pair of collars appeared around their necks, gold for Izuku, silver for Ochako. Each collar had a long and delicate chain leading to Markus' hand. The two of them shivered as a compulsion kept them from panicking, and a brilliant blush spread over Ochako's cheeks as a fantasy she'd repressed for years was suddenly realized. In public. Izuku also blushed, but purely out of embarrassment. Nothing else.

Markus grinned at their hesitant but not really upset looks. "Are you two sure you wanna know what's going on? Last chance to back out."