My sister when she was 6- 8 ( shes no 13) had an imaginary friend who was a full grown man who used to sleep under her bed. to start with she was terrified of him and say he was a bad man and would cry all the time. then she said they became friends and had conversations, one day he siad he had to go to fiji and wasnt coming back. the scary thing is about a year ago some friends of mine were doin the ouiga board and one of their spirit guides told them i used to have one and it was a man called richard who had been a serial killer in his life and was eventually killed. apparently he left me the same time my sister stopped seeing he imaginary friend. none of my friends knew about my sisters imaginary friend.
A childhood belief about imaginary friends

others believed things like this
- I used to have an imaginary friend named Mr. Nobody. He would protect me from my imaginary enemy, Bad Elmer.— Kdees
- My little sister's imaginary friend was Kit the talking car from that show Knight Rider.Anon
- When I was about 6 or 7, I had an imaginary friend, who left for ice-cream one night. He never returned.— His name was Jimmy
- my aunt used to have an imaginary friend who instead of having blood had 7-up in her veins.Anon
- I used to believe in my imaginary friend dooodle.
Doodle was a stickperson and was always smiling.— Samantha - I thought my imaginary friend was real and he imagined me
I hope he still believes I existAnon