MAke arm and leg hair grow faster?

I am 15 and a sophmore in highschool, in 7th grade (12 going on 13) I started getting armpit and pubic hair, I have regular amounts of that now but I have little to no arm, leg and face hair, the hair on my head grows fast but on my arms and legs it doe'nt, will vitamin e help this? how can my arms and legs get harrier?