In the summer at school we had an activities week. Which includes Sports Day, etc. One of these days was a business day. We were put in groups and worked as a small business to make stuff, sell it and make a profit, etc.
I was put in the group with this girl that was one of the most beautiful girls in the year. She was in my form group, but we never talked much in there. We talked every now and again on MSN. But she is just beautiful. She had the biggest boobs in the year, not too big but definitely not too small. She had the cutest face and she wasn't afraid of talking dirty.
So it got to the afternoon all right, but then she sat opposite me. And she tends to jiggle around a bit. So as you can tell, I couldn't stand up. She was just making me so hard it hurt. It was becoming irritatingly hard. So I pushed the chair back and pretended to do up my shoe laces. But in actual fact I was rubbing my arm against my penis, which didn't help one bit. But somehow I had managed to put my penis in the right position so if I stood up it 'could' go unnoticed. So I finally asked to go to the toilet. As I stood up she said, 'I'll be thinking about you!' so I said 'I'll be defiantly thinking about you!' Which I'm not sure if she got an idea of what I was about to do but she changed the expression on her face.
So I quickly dashed to the toilets. I was almost running at one point because my 'condition' was becoming noticeable again. I just couldn't wait that I started to unbuckle my belt before I even got through the door! And thankfully nobody was in there cause as soon I got to the urinal I pulled my trousers down slightly and masturbated like there was no tomorrow. Nobody could stop me! I never even thought to look in the stalls but I released afterwards and nobody was there. But my mind was totally on her, she just got me so worked up its unbelievable.
When I finally did cum after 2 minutes or so, I thought I was going to faint. I hadn't cummed that much before. I thought it was going to block the drain at the end. And it was all over the place. The sides, the floor...my hand.
I was still coming off that high that I forgot to pee, and I went back and felt like I needed to go. So the rest of the afternoon I was dying to go. I would have gone but it may have made it too obvious of what I did. So after school had finished I went back to the toilet and saw that there was some more next to mine at the bottom of the urinal. I wonder whose it was?