I used to think that 'Fellatio' was one of the characters in one of Shakespeare's plays. I think it was Romeo and Juliet. I was so confused why he would put such a dirty name in one of his plays.
A childhood belief about oral sex

others believed things like this
- when i was younger i thought ac/dc's dirty deeds (done dirt cheap), was dirty knees and the thunder cheeks.— S
- a friend thought that the song "dirty deeds done dirt cheap" was saying "dirty deeds dunderchief"— dubs
- When I was smaller I used to think that if I broke the Tv the characters would come out x]Anon
- I used to believe that toilets would open and swallow you up because they got dirty!!— swallowing toilet
- When I was a kid I thought oral sex was when adults "talked dirty".— Chris
- i used to believe that the "coin wash" was to clean my dirty pennies.— rmutt