I once walked into my parents' bedroom (no, this isn't going where you think it is!) and saw that my mother had left a box on the bed, marked "Oral Contraceptives."
For a while, I became convinced that a woman could get pregnant by giving a man a blowjob, and she had to take oral contraceptives to prevent pregnancy.
A childhood belief about condoms

others believed things like this
- I believed that oral sex was people having sex in space.
I think I got 'oral' mixed up with 'astral'— PinkPanther - Me and my best friend used to believe that you could get pregnant from oral sex until we were 12Anon
- i used to think oral sex was the same as phone sex.— hoolichow
- i used to think that oral sex was kissingAnon
- I used to believe oral sex was french kissing.— Anonymous
- I used to think that oral sex was when you had sex with a dentist!
HAHAHA!— Kylee