Have her strip!

"...so, is it fine for us to play with her like this?" Tsukane asked. "I forgot about the whole kiss thing myself, we should probably undo this..."

"Oh no, we don't wanna do that, Master! Trust me, being the lover of a Succubus or Incubus is an extremely fun fate! You don't plan to mistreat her or micromanage her or anything, right? So long as you leave her a little agency, she won't have any desire to complain!" Kurumu assured him.

Deciding to trust Kurumu on this, he nodded, before mentally willing Tamao to strip. Giggling softly, she didn't even try to resist as her hands moved of their own accord, a bit stiffly, undoing her top and shrugging it off. They then gripped the hem of her undershirt, she pulled it up, exposing her midriff, and her bikini top, still wearing that instead of a bra.

Dropping the shirt, she undid her skirt, letting it fall down her thighs, and then bent down, pulling off her shoes and stockings, one foot at a time. "Mmmnh, she looks so hot, submitting like that," Kurumu purred.

Just as Tamao started to move to undo her bikini top, she blinked, as if snapping back to reality as her hands quivered. Tsukane ceased his mental control as she gazed at him. With a smile she said, "Unh... Wow... Um, can I just... Continue under my own power, Tsukane? Or perhaps you'd like to be called Master?"

"Go ahead. On both things, though only Master in private," Tsukane nodded to her. She giggled a bit, and quickly removed her bikini top, now doing it just because Tsukane asked, not needing his power to guide her anymore. Her breasts were exposed as the patches of fabric fell away from them.

"Do you like, Master?" Tamao asked, cupping her tits for him, smiling.

"...yeah," he replied, giving her a smile of her own.

"Same~!" Moka nodded.

"But let's get to the good part! Bottoms off!" Kurumu cheered. Tamao didn't even hesitate, reaching down, and pulling the strings of the bikini bottoms undone, letting them drop. Letting her labia be displayed by parting her legs slightly, she stood, arms akimbo.

"...I think I'm going to like being a part of this harem," she admitted shamelessly. She'd never been shy about using her body to seduce a man before, but now, she actually wanted him to get a thrill, seeing her like this.