In my Freshmen Year of high school, I was a very horny kid. Everyday, I would rub my dick through my pants until I came. One day in math class, we were in groups working on a packet. Across from me sat a girl with some very nice cleavage. So I went to start rubbing my dick when I got the idea of doing something much riskier.
I stealthily unbutton my shorts and unzipped my fly. I wasn't wearing any underwear, as I often do, so I was easily able to pull my dick out. The desk covered what I was doing, but if anyone could see under the desk they would have no problem spotting my 7 inch erect cock standing straight up.
I used my left hand to stroke my dick while I used my right hand to continue writing. I would catch a glimpse of the girl's beautiful smooth tits every minute or so, each time moving closer to climax. I slowly stroked hard dick, starting at the base and then up to message the head. I could feel the pre-cum on my hand.
As I was about to cum, I look directly into the girls tits. As I was looking, I shot my load all over my hand, dick, and exposed pubes. The feeling of pleasure was extraordinary.
Now I had to clean myself up. Luckily I had a pack of tissues in my bag, so I was able to wipe the cum off my crotch and hand without anyone noticing. I pushed my dick back into my shorts and zipped them up, and walk out of that class as if nothing had happened.