For a few years, I thought a "blowjob" and "sucking" someone's penis were 2 different things. I understood and enjoyed the sucking one, but try as I might (and believe me I tried), I couldn't figure out, for the life of me, how blowing on it worked.
A childhood belief about oral sex

others believed things like this
- I used to think that when you had sex the male was sucking the life out of the female!— dude
- My mother told me that if I kept sucking my thumb I would grow another one out the side of the first one.Anon
- My mother told me when i was 5 that Santa wouldn't come if i kept sucking my thumb. — Traumatized
- When I was younger, I would believe that vacuum cleaners were capable of sucking up humans.Anon
- my brother stopped me sucking my thumb by telling me the scissor man would come and cut it off
he was evilAnon - my mother was able to stop me from sucking my thumb by telling me it would rust and fall off!!— lv