You've got just one egg
You're not going to make an omelette
Flying just one way
You're not going to make a jet set
Sister, brother, wherefore are thou?
No need for bunk beds in my bedroom, now
Oh, damn you, dads
Why did you settle for only me?
I'm an only child
More than enough for them, but not enough for me
Only child, only child, only child
The only berry on my family tree