I used to think that a penis was shaped like a cone with an opening at the end. To this day, i dont know where I would've come up with that image.
A childhood belief about sex

others believed things like this
- I used to believe that scones were cone-shaped because the word is sCONES. — scone
- I used to believe that a man's penis was carrot shaped.Anon
- I used to believe that the oddly-shaped clouds were made from oddly-shaped sheep— Dickson
- 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