That is sperm, its just not semen (so the white stuff) yet
Thats because you started jerking off when you hit puberty, you just couldn't ejaculate yet...
I think it does, I'm 14 right now and I started masterbating at around 10 and everytime I try to stop and resume something new and puberty related happens.
i weird but i fell realy good
master bating
Do you masturbate a lot?Have you got big penis on hard?Have your balls dropped?