I came from a very prudish family that was tight-mouthed about sex and such things. When I got to high school, a sex education class was the first time I'd ever been encouraged to discuss or learn about such things. But I became a joke that I was never able to live down for the rest of high school because I made reference to how "a girl has a different-shaped penis from a boy". I actually knew what I was talking about apart from not knowing then that the word "penis" is not used for everybody's "wee-wee". But rumors never quit circulating around the school that I "thought girls had penises" with that being interpreted to mean I thought their organs that they peed with were just like boys'
A childhood belief about sex

others believed things like this
- I used to think the Senior Center was where all the high school seniors got to hang out and cut class— Jordan
- I used to think that girls' anuses were green. I remember thinking that as late as high school.— Jack
- I thought that wars had to last four years... just like high school and college.— A. Falk
- Until I was in High School, I really thought that the "underground railroad" was under the ground.— S
- Until junior high school, I thought Monty Python was a wrestler.— Jamie
- I used to believe that you got married right after you finished high school or college. Anon