I once went on a two-day road trip with a good buddy of mine and we stayed at a cheap hotel with twin beds. The lights were out and it was about 11pm and he asked me if it was okay for him to masturbate, as he couldn't fall asleep otherwise. I was shocked by what he had just said, but at the same time, I had been thinking how I wished that I could jack off before falling asleep. So, I told him to go ahead and that I also needed to masturbate. We threw off the covers and went to work. It was far too dark to see anything, but I could hear him jacking away and moaning a bit as he came, which took less than two minutes. I took a few more minutes and shot my load into my sock.
The next day we didn't mention it at all. We arrived at the event and drove back and stayed at a similar hotel. He didn't bother asking me this time, pulling off his shorts and jumping in bed, ready to start jacking off. The thing is, the table light was still on. I pulled off my pants and shorts and jumped onto my bed and tried to catch up to him. This time, we talked to each other and we could see each other's cocks.
At one point he got up to get some tissues from the bathroom and I caught a good look of his cock, which I hadn't really seen well before as he was right-handed and my bed was at his right. It looked like the rest of him,long and thin. I asked him to bring me some tissue as well. I was still stroking my cock when he emerged from the bathroom. He walked up to my bed and handed me the Kleenex, his eyes never leaving my cock. In fact, after giving me the tissues, he just stood there, with his hard dick pointing at me like a gun barrel. I told him that I wouldn't be able to cum, if he was staring at my cock. He apologized and got in his bed and went to work.
We had been silently wanking, when he asked me if I was uncircumcised and I told him that I was complete. He then asked if he could take a quick look at my cock. I stood and walked over to his bed and showed him my cock, pulling the foreskin up and down a few times and then went back to my bed and resumed jacking off. We both came twice that night. I have known him for over 30 years, and we have never mentioned that night since it happened.