When I was younger I used think that sex lasted 24 hours and I didn't know what you had to do if you neeeded the toilet!
A childhood belief about sex

others believed things like this
- I used to believe that sex lasted for 2 hours like a movie. I don't know why I thought that.— Daniel
- I believed that if I swallowed my phlegm I would die. I spent hours spitting it out into the toilet.— chunky munky
- In kindergarden my friend told me that there were 24 hours in the day and 15 hours in the night.— Cari
- I used to believe that eg 1+1=11 and 2+2=22.
Luckily that only lasted until age 2 1/2.— Madi - I used to think all wars lasted only 4 years, like college or something. Anon
- I used to think the Grinch was going to pop out of my toilet when i was younger.— Jamal