When I was 5, I got out of summer day camp, I asked my mom while we were having dinner at the "Clock Restaurant".
She answered, I didn't think about it again for 6 years. If she hadn't answered I probably would have gotten some chick pregnant at 12.
Me: Mom, how are babies made?
Mom: A man put his penis in a woman's vagina
Censored for content. Do not highlight, if you don't want to know what she said.
The end.
I would cite regulation, but I know you will simply ignore it.