When I was in grade my best friend was a girl named Lucy. She was a tom-boy and participated in school teams. Neither one of us were in the cool crowd. We weren't ugly or anything, just not part of the cool group.
She used to hang at my place and we studied together (we are pretty smart). Anyway, one day she was over and she found my stash of porn mags. She casually asked if I masturbated to them. I said yeah, sometimes. Then she admitted she used them to! She said since I was being honest so would she, she liked girls! She asked if she could borrow them to masturbate to. I said sure, but, on one condition, she had to show me her tits and pussy. OK, but, she also wanted to see a real penis.
My parents were out and we both stripped off. She had tiny tits (really, just nipples) and she did not have much hair. She shaved since she was on the swim team. One thing led to another and we both masturbated in front of each other.
She borrowed my mags a lot and would always strip for me if I wanted 'visual stimulation'. What a friend!!