The second one.

Tsukane mentally ran over his options, having started to write Inner Moka's name, stopping at the last letter to avoid affecting her prematurely, considering each one. They all had their benefits, one allowed him to touch Moka in an intimate place with no repercussion, another allowed him to see her nude body in private, and the third would let him see her bra, in addition to her panties, any time he asked.

It took him a couple minutes, and Inner Moka snapped a bit, "Get on with it!"

"Hey, don't rush me!" Tsukane pouted. "You told me to choose wisely, of course I'm going to think about it a little!"

Inner Moka huffed, but sat next to the nude Kurumu, who was giggling. "So impatient," she teased.

"Watch it, I still have your punishment to decide for your comment earlier," Inner Moka growled.

"I could always incentivize you to keep it light," Kurumu teased, leaning towards Inner Moka, putting an arm under her bust, accentuating her breasts for the now bisexual vampire.

"...point taken," Inner Moka acknowledged with a blush.

Tsukane came to a decision, and wrote, "Moka Akashiya will strip naked whenever in private with Tsukane Aono, whether it be her Inner or Outer self. Whenever she is naked before Tsukane, she will enjoy his gaze and show off her body liberally."

When he set the Note down, Inner Moka walked over to see what he had written. Upon reading it, she grinned to Kurumu, "Leave us, go stand outside in the hall."

"Eh? Oh, you picked the second one, couldn't include me?" Kurumu pouted at Tsukane as she got up and grabbed her top and skirt, leaving the bra and panties. She wouldn't need them just to stand outside a moment, and she headed out after quickly dressing.

Immediately after the door shut, Inner Moka worked on her top. "Couldn't resist seeing me naked, could you?" she asked with a blush as she discarded her top and unzipped her skirt.

"Can you blame me?" he asked her, watching her skirt drop and her hands go behind her back. "You're incredibly beautiful."

She went deeply red again, unclipping her bra and dropping it down her arms, making her boobs bounce. She then bent forward to pull down her panties, sliding them down her legs, removing her socks and shoes in the process. It wasn't a long and sexy striptease, just a quick undressing to get naked, but Tsukane didn't mind, as she straightened up to expose her body in its naked glory.