that their kids don't know what sex is? I am shocked that parents believe this, especially when their child goes to school, because believe me they do know and they know a lot of misinformation that they hear from other kids. So please don't think they don't know what it is and don't put off talking to them until it is too late. Talk to them, communicate with them and have an ongoing conversation. They need you, not the junk their friends think they know.