i used to believe (thank you, older siblings) that i had a twin with no belly button that went to school for me when i was sick. she lived in the laundry room.
A childhood belief about lies

others believed things like this
- My younger sister used to believe that in everybody's belly button there lived a family of squirrels.— Sophie
- I used to think that if i touched my belly button it would unfold and my belly would be inside out forever. Anon
- When my dad was little his older siblings convinced him that there were flocks of flying turtles.— Anonymous
- I used to believe that every person in the world had a twin, and that I had a long-lost twin in France.— Ashley
- babies come out of your belly button— Kit
- when I was a kid I thought that babies come out of a belly-button.— Ana