When I was about 10 I remember my mom (bless her heart, I didn't have a dad at the time) trying to explain the birds and bees to me. Of course, she used as much WTS lingo as she could.
What I got out of that chat was that a man's "seed" went into the woman. In my young mind, the only "seed" I could picture fitting through that small hole in my penis was a sesame seed. Imagine my shock a few years later when I discovered it wasn't like a sesame seed at all, lol.