I used to believe that a mans penis was a big sack, and the testicles were little tiny balls about an inch in diameter. The man would open the weiner, and put it in the womans vagina. If they wanted twins, they would put in two balls. Then I asked my parents why they didn't put in two balls, because I wanted a twin. Silly me. They gave me the talk.
A childhood belief about reproduction

others believed things like this
- I used to think that girls had "balls" and not boys, and the "balls" were slang for breastsAnon
- I originally thought "balls" was slang for buttocks instead of testicles.Anon
- i always thought it was Grape Balls of Fire instead of Great Balls of Fire— Courtney
- i use to believe guys could have a random # of balls but the maximum was 4— bookie
- I used to believe that the clouds were made of cotton balls— Jeannie
- i used to beleive cotton balls were marshmellows— carly