Not that long ago, the idea of feeding your kid with organic fruit and vegetables or paying attention to sustainability or any of that - that was very fringy. And I guess some people will argue it still is to a degree, but it's kind of mainstream fringy now.

For years we've used the bases analogy - with intercourse being the "ultimate sex" even though that's probably not going to feel good to girls. That model doesn't let you say "I like it at second base, maybe I'll stay here."

Parents tend to name all of baby boys' body parts, but with girls they go from belly button to knees with this void in the middle. That doesn't change as kids go into puberty.

Displaying yourself as sexy doesn't do anything to increase sexual self-knowledge or pleasure.

I asked a high school girl about unreciprocated oral sex and said, "What if guys were asking you to get them a glass of water and never offered to you a glass of water? Would you put up with that?" She burst out laughing. It never occurred to her.

All girls over age 14 remove pubic hair. The only touching is to remove hair. That's grim.

Girls are removing pubic hair before fully having it. They would say I feel cleaner, it's for me, but then they'd say if a boy saw pubic hair down there they'd head for the hills.