Yeah, "do it" means have sex. "Sleep with" is also usually slang for sex... [ Better explain that one too while he's at it.] Because you're sharing a bed, and it's a more delicate way to put it depending on the company you're in. And you can feasibly pretend it does just mean platonically sharing a bed for sleep if an adult overhears you.

[Micchi thinks about those sort of things, after all. Deceiving teachers and other adults. His mouth twists, but not at that thought - lying doesn't bother him. Philip doesn't know what he's asking.]

You're getting deeper into this than you should before knowing more. Yeah, there actually is a position that guys consider worth more "points" than any other. [This is such a sensitive subject, he lowers his voice even futher.] Anal sex. Girls don't usually want to do it without some convincing; it's not enjoyable for them the same way it is for guys, because guys have a prostate. [And if Philip's human biology research didn't cover that he can look it up for himself.] So guys are basically patting one another on the back for coercing girls into sex that might not feel good for the girls at all. It's gross.

So no, I don't rank in the competition.