The first children's book I remember reading as a child was called "Where Did I Come From?" It seemed like a normal children's book at first glance until I opened it to discover tons of cartoon drawings of naked people (and keep in mind this was prior to the private parts shaving era). After I was done reading this amazing book I instantly had tons of questions about sex like "how long do I have to leave it in for" and "what happens if you're in the middle of sex and you have to pee?" So far I've figured out that you have to leave it in for 2 hours and 57 minutes every time you have sex but I still don't have an answer to the peeing question.