This might seem vulgar, but the first time I learned about homosexuals (men having it off with men) I didn't understand that they might use the anus, I thought they would put one willy up the other... which I imagined would be excruciatingly painful and led me to wonder why anyone would want to do it!
A childhood belief about sex

others believed things like this
- I thought that "fool" and "What in the World?" and "crap" where ultra-vulgar words.Anon
- until I was thirteen I used to believe that "homocide" was two homosexuals killing eachother. Anon
- i used to belive that my willy would eat me at nightAnon
- I used to belive that my willy was a snake and if i wasnt careful it would bite— eggbert
- Yeah I believed (because my mother had told me) that your 'willy' would fall off if you played with it :D— Doz
- I used to beleive that a catacism(spelling?) was an extremely painful Christian version of a bris.— Mike