when i was a kid i used to believe that girls had teeth inside their vagina and that they would disappear when the girl turned 16. i found out otherwise when i was 14, and my gf at the time was 15 :P
A childhood belief about rude bits

others believed things like this
- I thought that the difference between girls and boys was that girls have teeth.
Anon - I used to believe all babies came out as girls and later on in life some of those girls turned into boys — Tom
- When I was a little girl, I thought all babies came from 'China' (a Vagina)— Lainie
- That boys turned into women when they became adults and girls turned into men when they became adults. Anon
- I use to believe in the toothfairy until i found all my missing baby teeth in my mom's jewlery box drawer.— Ashley Bailey
- I used to believe that eating burnt toast would make your teeth whiter and would brush your teeth for you.— Natasha