He makes them earn first turn.

"So, who wants to go a round with me first?" Jaune asked with a grin.

"I do," Emerald said with a blush as Neo, also blushing, raised her hand.

"Hmm... Tell you what, you two get naked, then you have three minutes to turn me on, and whoever puts on the sexier show gets round one from me," he grinned. That would definitely get them competitive with each other, and that would get them trying to out sexy each other. Whoever he picked, he was the real winner.

Both girls pouted, before Neo smirked at Emerald. Without having to say anything, it was clear she was saying, "You're going down." With that, the two quickly stripped, though Neo put a sway in her body in the process. Just because Jaune said the contest started once both were nude, didn't mean she wasn't going to try and rig the game at the start.

Emerald was naked first, and then saw what Neo was doing, and huffed. "Cheater," she accused as Neo slid her pants down, shimmying her hips in the process. Once she had them off, the contest could start for real, and Emerald grinned, putting her hands behind her head, jutting her boobs out. "So, do you like my slutty, exotic body?" she teased Jaune. "I can talk all kinds of dirty to sweeten the deal too..."

Neo gave a small glare at Emerald. Oh, she had to go there, did she? The then smirked, and leaned forward, closing her eyes as she kissed Emerald on the cheek while smacking her ass, both to fluster her, and of course, turn Jaune on with the girl on girl action. As well as secretly enjoying it.

Emerald of course, jolted, while blushing heavily in surprise, her arms shooting down.

https://imgbox.com/GqRwYRTD#

She then turned, sputtering at Neo, who simply grinned and turned her ass towards Jaune and shook it.