When I was little I used tob believe a brother and sister would always get married but I thought what about a sister and sister or a brother and brother? My parents cleared it out.
A childhood belief about marriage

others believed things like this
- i used to think that every family had a brother and sister and they married eachother when they got olderAnon
- First I believed that my parents were brother and sister. Then I thought that my dad was also my mums dad. — Rainbow
- I used to believe my parents were brother and sister, and that everybody's parents were brother and sister.— Rachael
- I used to belive that my mum and dad lived together cause they were brother and sister— Corin
- I used to think that Cain and Able were brother and sister (with Able being the girl).— Duh
- When my sister's father went to Seattle, my sister said "Is Attle nice?" She thought Attle was a person's name— zzo38