It started one night after a game when I invited Matt, a good looking younger colleague, over for a drink. One thing led to another, and when he noticed I had a couple of porn videos, he said 'What the hell, let's watch one'. Ok, I agreed. Before too long it was obvious we both had boners. I said I was getting so hard in my jeans I would have to release my cock and rub one out or quit watching. 'Hey, I need to jack off too', he replied. We both took out our cocks and masturbated separately to satisfying orgasms.
I suggested that if he was up for it, he should come over some other evening and we might have some more interesting mutual fun. That happened about a week later. He indicated he was willing to go for a full body man-to-man jackoff. We first stripped and showered together, soaping each other's stiffening dicks and balls. Then after towelling off, we applied a generous amount of lube to our, by now, firm erections. I had Matt lay down on his back on my bed and open his legs so that I could see him face to face thrusting my cock against his thigh. I had him gently pull on my balls at the same time. It wasn't long before I was shooting ropes of semen onto his stomach. We then changed places and Matt ground his large cock coated with my sperm against my abdomen while I pulled on his big balls. I could feel his cock becoming ever more rigid and pulsing as he moaned in coming to an explosive climax, the gush of his warm sticky semen flowing down over my stomach. We just lay there enjoying the moment before jumping back in the shower to clean off.