yup he could if he was really horny, but if he wasn't which in fact he wasn't when your 9 you don't go through puberty !
yes it is
any time. any male at any age can get an erection.
4 inches
get ZAC FISHER TO RUB IT
Yes I'm nine and I hade a 5 inch boner and to hide it I put my hand in my pocket and hold my dick.
I DONT KNOW YOU TELL ME
yes its normal
Yes it perfectly fine
yes
if your over the age of 10, no.
9 years old. A 9 year old on his birthday is approximately 3,288 days old.
Because they are going through puberty and they have an erection and are wishing to hide it.