When I was in preschool, I believed that a man's penis looked exactly like our (a girl's) tnogue. So, logically, I thought that since we don't have penises where boys do, I figured we have one in our mouth instead.
A childhood belief about rude bits

others believed things like this
- When I was about six, I believed that boys had buttons on their penises--one for pee and the other for poop.Anon
- I used to believe both boys and girls had penises so i thought sex was when they tied them together.Anon
- I used to think that hot dogs were made from boys' penises.— never eating hot dogs again
- When i was younger i believed that a cat was a girl and dogs were boys.Anon
- When I was a little girl, I believed that all cats were girls and all dogs were boys. :)— Mary Ellen
- I used to think that boys didn't get their penis until they were 18 which was legal adulthood! — beckles