I've always loved to be watched masturbating. All the way through puberty and beyond I used to find ways to show myself, sometimes jerking, sometimes not. I went to an all boys boarding school, and so there was little chance to indulge in my favourite pursuit. But I did find ways. Our House matron was not exactly attractive, being in her 60s, but I would go and see her with an injury, my hard cock sticking out of the leg of my shorts, foreskin pulled back, and ask her to bandage my knee.
I did this so many times! I would also go to drop off laundry at bed time in my dressing gown and wank into my boxers and leave them in the laundry basket. Many times I nearly got caught by Matron or the house masters wife! I also masturbated in front of my physio once, she was giving me ultrasound on my leg, and I got hard. I just started playing with it. She got pissed, and walked off, so I quickly finished off and wiped up! I've jerked off in front of girl friends too, they usually like it, especially when I lick my own cum up, or finger my ass. I'd like to just jerk off with my girlfriend and a whole load of her friends all watching me, fully clothed, and see their faces as I edge and lick it up, and eventually as they encourage me on I would cum.