How old was your child when they first heard about sex in school?
My daughter is 6 and in first grade. Her cousin and her were playing saw a book with a couple kissing she said "they are having sex". I was surprised she has never mentioned it or anything a long the lines. I asked her what sex was and she said something about people privates. She told me her friend from school told her about it. I tried talking to her about it the best I could but I wasn't really prepared yet.
How old was your child when they first learned/heard about sex from a peer?