We've always tried to normalize sex for our kids, but in a balanced way. Now that they're older, we're not shy about telling them to find someplace else to be for the weekend because things are going to get drunk and dirty. Photos might be taken. Which usually gets a reaction like, "Oh my God, that's gross. Yeah, I'll be at my friend's place, good luck with that. And stay the fuck off my bed."
We're at a point where I can now give my daughter better advice about sex. Advice that isn't just "don't do it." It's more like, if you're going to do it, don't be stupid about it, and don't put up with a man who doesn't worship you like the goddess you are. And I try to remind her who and what she is: an actual goddess, a vessel of the mysteries of all things feminine, unique and beautiful and powerful. So get up off your knees and own your divinity, girl! Expect respect. Require it.