My sister is not quite two years older than I. For most months during the year, there are two years between us, but after I have a birthday, there is only one (at least in number). I used to believe that I was gaining on her and would one day catch her and then be older.
A childhood belief about birthdays

others believed things like this
- i used to think that if i didn't celebrate my birthday each year my younger sister would catch up with me— q
- My sister used to think that because I was 15 months older than her, I would die 15 months before her!— Nicola Braden
- i thought I got one year older when my family sang the birthday song.— I am the ghost
- My oldest sister is 15 years my senior. I used to think that she was older than my mom.— Callie
- I thought that Dad's were always older then Mom's, come to find out my mom is a few months older than my dad.— Nicole
- a friend of my little sister's had 4 older brothers, so she thought that when you got older you grew a penis!Anon