When the story lines involve people trying to "hook up", they are outright promoting it. Perhaps if the story lines were more along the lines of people just dating and actively showing people resisting pressure, things would be a little different. Or they could just show other problems that teenagers face. Everything is so centered around sex that there really isn't any other story there.

Grey's Anatomy is a perfect example of a show that not only promotes everyone sleeping with everyone else, but they also show just how phoney they really are. Not only do they have subordinates sleeping with direct supervisors (a huge no no for doctors and most other professions), but they have doctors who are so stupid that they don't bother to either 1) use a condom or 2) use the pill. If you're going to sleep with someone and not be ready for the consequences, use some protection (this, for me, only applies to adults, underage people shouldn't be having sex either way). Mind you, I don't watch Grey's Anatomy, these are just some of the things that happened in the first half of the first season. They're also the reason I stopped watching the show. It's no better than a teen angst drama show, it just happens to show adults working in a hospital.