I was getting the roof of my house replaced. There were 6 guys doing the work and whenever they needed to urinate instead of using the bathroom inside they would go behind this bush I had for some privacy. The bush was a few feet from a basement window and being that I spend a lot of time in my basement I pretty well saw each of them pull their cocks out to pee. I am not gay but seeing their cocks was a bit arousing. Once they were done the actual roof the following day they had one of the guys, who I guess was about 25, comeback to clean up the debris that was still on the ground. It was a very hot day and the guy was wearing only a t-shirt, shorts and sandals. Soon the t-shirt was off and he was working only in his shorts. I could see he was really sweating and he asked about using the garden hose to wash away some of the dirt. I had seen his a cock on previous days but I was about to get a surprise today. He went behind the bush and I figured he was going to pee but he stripped down fully and hosed himself off with the garden hose. It was very arousing to watch him do this. He would them put on his shorts and do some more work. He would do this about every 15-20 minutes. I don't think he knew I was watching him do this and I was quite enjoying this regular show. After him doing this for about an hour or so I wanted to confront him just to see how he would react. I waited until just as he stripped naked and came out with a bottle of water for him. He apologized being naked and I told him it was not a problem as it was a very hot and that I do the same thing regularly, adding it was a very private yard and he could even work naked if he wanted. He took the water but after hosing himself down he put his shorts back on. I wanted to see him working naked but didn't think it would happen unless I could convince him somehow. I decided to check up on him a few minutes later and did so by going out there naked. I think he was shocked and surprised but didn't say anything. I saw him go and hose himself off again but this time he didn't put his shorts back on. He was working naked now just as I was hoping so I went out to check on him again. There we were both naked talking and he said he was going to be done shortly. I could see he was getting aroused as his cock was becoming erect. I thought about making a move on him but found it more arousing to just see him naked as opposed to getting sexual with him. Also, I had never done it with another man and was not gay. I went back inside and from the basement window I see him go behind the bush and grab his cock. I was expecting him to pee but he began stroking himself. I watched as he stroked himself until he was cumming. That gave me one hell of a hard-on. I almost immediately went back outside naked and he had put all his clothes on by this point. He saw the state of my cock and just smiled. He told me he was done and was leaving. As soon as he stepped away I went behind the bush and began stroking myself. Less than a minute later he had returned to grab his car keys that he forgot when he first left. I had my cock in my hand stroking it and was facing him. I didn't stop and just continued what I was doing and he just stood there and watched me. Before long I was cumming and he witnessed the whole thing. Once I was done his only words were, "I better be going", and he left.
I had never cum in front of anyone before, let alone another guy, but I did find it to be such a turn-on. I know I said I am not gay but if he had grabbed my cock or tried anything sexual with me that day I don't think I would have stopped him. If he asked me to do anything sexual to him I would have most likely done everything he asked.