The funny thing is that he knows all this information and I'm not the sort of parent who is embarrassed about laying out the facts. I want JT to like his body and know how it operates. I'd like him to grow up and have a healthy sex life and I think honest information is the way to make that happen.
Even so, I'm finding that he's a bit of a prude. Case in point: in the back of the Values & Choices book are diagrams of human bodies, complete with vagina, uterus, penis and testicles. He showed them to me and then shook his head in disappointment as he noted, "this sort of thing is really for parents, not kids."
I refrained from pointing out that the parents had clearly mastered basic anatomy in the process of becoming parents. No 7th grader wants to have that image reinforced any more than necessary.