My younger sister used to think that a cow's udder was actually 4 penis'. She went round telling everyone that a cow had 4 penis'. She liked doing it when I had to walk around with her.
A childhood belief about rude bits

others believed things like this
- I used to think that Frankie Avalon sang, "Hey Penis, Oh, penis..." instead of "Hey Venus."Anon
- I used to believe that gay sex involved a man sticking his penis inside another man's penis.Anon
- I used to believe that gay guys had sex by sticking their penis in the other's penis.— Fanbrat
- We use to think the male organ (penis) was called a PUDDLE....
My twin sister and I both called it that...Anon - a friend of my little sister's had 4 older brothers, so she thought that when you got older you grew a penis!Anon
- I used to think that men's poo came out of their penis' like wee.— Helen