I remember the first time another kid tried to explain the concept of sex to me.
We were in 3rd grade, and a kid claimed he knew what sex actually was. Inevitably, we immediately listened as the boy, with a straight face, was that a man and a woman got naked and just rolled around on a bed, back and forth, and so on.
I guess he wasn’t completely wrong, but there’s… Definitely some details missing. As kids, we walked around with all sorts of bizarre misconceptions, and these absolutely fit that description: