When the weather is nice, I like to go walking in the parks along the river in the beautiful northeastern city where we live. On more than one occasion I've watched, and occasionally participated in some casual jerking sessions on trails in the wooded areas there. These two happened at different times and about the middle of the day a few years ago.
I was walking on a trail in a moderately wooded area not too far from where I'd parked in the parking area. All of a sudden a young, 18-20, slightly heavy, hispanic guy came riding along on his bike. Nice face, laid-back attitude. Seemed to be on his lunch hour from work at a nearby mall. We smiled at each other and he stopped and was sitting on his bike. The next thing you know, he had a half-hard cock out. It was nice and thick with lots of foreskin. Probably not as long as mine, which I had out by this time, too, but much thicker. Even fully hard, he still had lots of foreskin (which, being cut myself, I find really sexy) and in about 2-3 minutes of looking at mine and stroking, he shot a good load on the path. What a compliment! We smiled, thanked each other, and he milked out the last bit, zipped up and was on his way.
Similarly on another day, I met a fairly young black guy, on the big side, sitting by the river. We smiled and talked a few minutes. The next thing I know, he is suggesting we step over into some wooded and brushed area. We seemed to sense that we were both safe to be with. Then he takes out one the larger and thicker cocks I've seen. Probably a good 9 incher, uncut, with lots of foreskin even when hard. This was very erotic to me and I enjoyed helping him stroke it. He seemed to enjoy seeing my hard seven incher, too, and was getting noticeably aroused. This was definitely a turn-on for both of us. In a few minutes, I got my reward as he emptied his copious load into the grass. I saw him one other time when walking and had a similar experience. I think he appreciated my attention since some cruisers might not have bothered with him, since he was on the heavy side. (They had no idea what they were missing.) And I think he actually liked my tight and fit body, not to mention looking at my cock. A great visual stimulation and experience for both of us.