Go grab Tsuyu for some fun!

He took Setsuna's hand, and they walked right up to the pond. "...hey Tsu, come over here!" he called, and she emerged from the water, looking curiously at him.

"...um... Yes Master?" she asked.

"Oh, the newest harem member gets this treatment first? That's going to be embarrassing!" Setsuna snickered.

"Erm..." Tsuyu looked between them, getting rather nervous.

"We're going to have sex with you, right here," Izuku smiled at her.

"Right here? In front of all these people, ribbit?" Tsuyu blushed. "That's not part of the game!"

"No, but it is going to be part of the fun..." Setsuna grinned.

"...you'll have to catch me first, ribbit!" Tsuyu declared, a mischievous glint in her eyes, already prepping to dart back into the water. Setsuna was faster, shooting off her arms at Tsuyu, just as she was about to make her getaway, and grabbing the frog girl's wrists, pulling her back.

"Bratty sub indeed," Setsuna giggled as Tsuyu squirmed half-heartedly. "She really wants to make us work for it when we dom her..."

"Yeah..." Izuku chortled, patting Tsuyu's head as she was dragged up to him. "Since you caught her, how about picking the position?" he then asked Setsuna.

"Have I told you you're a wonderful boyfriend?" she teased, making him blush.