"Daddy, where did I come from?" seven-year-old Rachel asks. It is a moment for which her parents have carefully prepared. They take her into the living room, get out several other books, and explain all they think she should know about sexual attraction, affection, love, and reproduction. Then they both sit back and smile contentedly. "Does that answer your question?" the mom asks. "Not really," the little girl says. "Judy said she came from Detroit. I want to know where I came from."