does it hurt when its your first time doing it with a boy
Depends on the person -
I've heard some people say it hurt for them but it didn't for me because we had A LOT of foreplay, lube, etc. just be prepared and you should be fine.
For some it hurts && for others it dosen't... It didn't hurt me but I kinda enjoy pain so it don't bother me much.. It all just depends on the people
You JUST turned 13 years old. Your body isnt physically, OR emotionally ready for sex.