In my family sex isn't really a talked about subject, so when I was younger (almost in high school) I thought sex was just a dirty thing perverted people did and had nothing to do with getting pregnant. I remember thinking I'd be so embarassed if I ever found out anyone in my family had ever had sex. By the way, my mum has seven children.
A childhood belief about sex

others believed things like this
- I used to think that girls' anuses were green. I remember thinking that as late as high school.— Jack
- when i was younger i thought ac/dc's dirty deeds (done dirt cheap), was dirty knees and the thunder cheeks.— S
- When I was a kid I thought oral sex was when adults "talked dirty".— Chris
- I was about 6 and thought my family invented the fart because I never heard anyone outside my family do it.— Bob
- I used to think that in the song"Family Affair, they were saying "It's a family of bears!"— Wayne Huffman
- When I was around 13, my younger brother told me that oral sex was when 2 people talked about sex.Anon