Because lying to your kids about sex helps nobody. Telling them that sex is “only between mommies and daddies” is a lie that leads to confused, hormone charged teenagers. Telling them that sex is “only something that happens when two people love each other very much” is a lie that causes hormone charged teenagers to confuse “love” with “lust,” or “obsession.” It leads to leaps of logic like, “If I have sex with them, we must be in love.” Or worse- “If I love them, I have to have sex with them.” And how many teenage tragedies are based on that misconception?