When I was little my mom told me that a prostitute was a woman who sold her body parts. I imagined her auctioning off an extra kidney or some tonsils.
A childhood belief about sex

others believed things like this
- I used to believe that a 'soul' was an organ of the human body, such as a kidney or lung. — Grace
- I used to think that "extra body" shampoo meant you could use the runoff suds to clean your body.— Christy
- I used to believe lepers came from Ireland. Like leprechauns, only with less body parts.Anon
I used to believe a man and a woman needed a doctor to put their parts together when they did it.— Phil- I used to think that bodily tissues were kleenex sheets that grew in certain parts of your body.Anon
- I used to believe that a funeral organist was the person who collected the body parts of the deadAnon