My Little sister used to believe that everyone had unique shaped genetalier
A childhood belief about rude bits

others believed things like this
- I used to believe that the oddly-shaped clouds were made from oddly-shaped sheep— Dickson
- When I was a child, I used to believe that Catalonia was the unique part of land of the world.Anon
- I used to believe that a man's penis was carrot shaped.Anon
- when i was a kid, I used to think that butterfly shaped pasta could fly and I didn't eat it.— Sabrina in Italy
- i used to believe that stars really were star shaped, i realised at the age of 34 how wrong i was.Anon
- I used to think that aeroplanes were called "arrowplanes" because they were shaped like an arrow.— Eduardo