Between the flirting and the questions, the blush is definitely increasing. He's not even sure if he has good answers, because a lot of the stuff he can think of is... so tied to Michelle specifically.

"I dunno, I.. like to be able to see you and make sure you're enjoying yourself," he answers, although right now he's not looking directly at her, cause this is embarrassing enough. "I mean. I've only had sex with five people, including you. It's... specific for the person, it's personal, it depends on what they like."