I masturbate all the time. Usually, I 'borrow' a dirty pair of my sister's panties from her hamper (she's 13). Sometimes I look at close-up picture I took of my erect penis with my dad's old Polaroid camera. I took it when I was about 12 or 13. I am rock hard and only have a tiny bit of hair around my dick. I keep this picture well hidden in my room.
I love talking about masturbation, but don't think I would ever do it with a friend.