I have just had a great wank thinking about this and thought I would share it so you can get off on it too!!
This happened a few weeks ago. My wife had gone to stay at her mothers for the weekend so I asked my best mate Jake if he wanted to come over and stay for the weekend as he had just split up with his girlfriend. The first night he was here we had a few drinks and watched a movie. He was tired so went to bed before me. About twenty minutes later I decided to turn in too. As I went upstairs I noticed that the door to the spare room was slighltly open and as I passed I had a look in and was amazed to see Jake lying there with the covers off and rubbing his big cock. It was one off the biggest turn ons I have ever seen and was instantly hard myself. I continued to watch while rubbing my hard on through my trousers. After a couple of minutes I heard Jakes breathing get heavier while he shot his cum all over his chest! It looked fantastic and I couldn't wait to do the same so I went into my room and got undressed and started to franticaly rub my swollen cock. I was so hard and had pre cum dripping on my stomach which I love. All of a sudden the door opened and Jake was stood there in just his small white briefs. He said that since I had watched him it was only fair for him to watch me. I was so turned on stroking my cock while looking at his bulge in his briefs that I shot my spunk all over my chest while he smiled and said it looked great! I shot so much that is was dripping off me. He said night and left me to clean up.
The next morning I got up and went to the kitchen. Jake was already up and stood there in just his briefs again. I had shorts on but looking at him in just his pants got me really hard again and he obviously noticed.
He told me I needed to sort it out and I agreed. I could see he has getting hard too so asked if he wanted to join me, which he did!
We went back to the bedroom and took our pants off and lay on the bed jacking off. This was the best wank I had had for a long time. Jake said he was going to cum soon and I couldn't wait to see it. I told him to come on me so he knelt up and after a bit more rubbing shot his spunk all over my cock and chest! I couldn't last anymore after this and spunked all over myself-mine mingling with Jakes cum! We both laughed and lay there naked for a while to recover until I got up to shower our cum off me.
It was a great time and can't wait to do it again!