It was a very snowy evening many years ago when I was a teenager. I worked at a mall that had Mr. paperback bookstore. I was a really horny teenage boy and decided to look at some playboy magazines. There was a camera but nobody around whatsoever except for the clerk way at the front of the store. I knew one of the workers who was not on duty and he told me that the camera was just a scare tactic to prevent people from stealing. I casually looked through a couple playboy's and then carefully opened a penthouse. This was one of the first times I had ever seen two girls together sexually in a magazine. I got incredibly hard and horny. I looked around and cautiously reached into my pocket. I was doing my best to masturbate privately but with one hand thumbing through the penthouse. The pictures were getting much more intense with one girl forcing the other to ride a bicycle seat deep inside of her. I had never seen anything like this & thought what the heck I am all alone. I carefully opened the magazine on a counter and tried to jerk off secretly. The female clerk was reading a magazine or so I thought. I quickly undid my fly and stroked my private for almost five minutes. Nobody was around and I ejaculated twice into a handkerchief. I waited for my erection to subside and zipped up. I put the magazine away and bought a record album. When I got to the counter the young woman clerk was laughing hysterically at me while saying I hope that was worth it. I was terribly embarrassed and within a few days everybody at my store and throughout the mall knew about my actions. I only went back into that store one more time and everybody was laughing at me. All the girls were making the jerk off action with their hand for the entire time that I worked at that mall. Worse than anything else they had this on camera after all and I thought she'd just seen me in a mirror or something. Wow wha was I stupid and embarrassed