Talking to your kids about sex is probably as uncomfortable for you as it is for them. But if you think it's ok to avoid that discussion—think again. The January 2011 issue of Seventeen Magazine interviewed teens for a national survey on sex, and the findings are disturbing. Teens are increasingly putting themselves at great physical and emotional risk by having pre-marital sex. And sadly, almost a fourth say their parents have never talked to them about it. In fact, 77 percent of teen girls say they get their information from other girls. Here are 10 Ways to Talk to Your Children about Sex.