Why Your Parents Don't Want You to Watch Gossip Girl

This week's Gossip Girl is going to be awfully controversial. According to previews, three of the characters are going to have a threesome (or "3SOME," as the ads are spelling it).

Now that I've told you that, you're probably more likely to watch it than before, to the bane of parents everywhere - including the Parents Television Council. They're worried that showing a graphic sex act that's usually only seen in adult movies will change what teens think of as normal sexual behavior, which could be "emotionally and psychologically damaging."

Sexy teen television and movies have always been around (from Madonna videos to American Pie). It's hard to imagine Blair Waldorf, Chuck Bass and the gang changing much about what teens think about sex.

If there is a rise in unsafe sex or teen threesomes after Monday's Gossip Girl episode, you can be sure it's 'cause of foolish people who don't bother to learn the facts: namely, that any kind of sex other than safe sex is idiotic, and that no one's having threesomes other than fictional prep school students with nothing better to do.

• The Most Important Things Teens Should Know About Sex
• Safe Sex 101
• Sex: Do You Know Your Stuff?