This happened in 2007 with a former co-worker of mine.
It was my turn to drive so my plan all morning had been to pick my friend up and when he opened the door, he would see me sitting there with my dick at attention, exposed for his view. I had thought to even throw an old t-shirt in the van just in case we needed clean-up action. But, as I drove through the parking lot, I was just too nervous to get hard.
We drove to lunch, had some Mexican food and never brought up any of the "homo" stuff. As we were walking out of the restaurant, I lightly said, "Well, we can get in the van and play with our wieners." and he just laughed.
I should provide a little background. My friend and I have known one another for years - we had worked together before and we also had several mutual friends. One of his closest friends had enjoyed the company of my wife and I years earlier when we "played". He knew many details of these MFM encounters and over the years, I had enjoyed telling him details. I probably enjoyed it more than he did. Of course, it was a two way street. He had shared intimate stories of his encounters that included him and his wife or old girlfriends, sometimes others.
In recent months, I had gotten the nerve to share a detail of my encounters that I had left out before - that I had sometimes engaged in various MM play during the threesome with my wife and our mutual friend. After all these years, it was a relief to know that he was not completely disgusted with my confession. I didn't need acceptance so much as just being able to be up front about it. As a way of showing he was okay with it, he confided that he had almost had an encounter years earlier, and always wished he had gone through with it.
These revelations led to me sharing with him several stories of my encounters and my enjoyment in masturbation during driving. I would learn later that he had also relieved himself on long drives more than once. So with this all in the open, I felt like he might enjoy a little stroke time during our drive after lunch.
Once in the van he said, he wasn't hard, so there would be nothing to play with, but since the topic had been brought up again, I started quizzing him about his almost encounter. He answered one or two questions and suddenly, I noticed him shifting in his seat. That did the trick and the next thing I know he says, "Well, if we were to play with our wieners, where would we do it?"
With that, I changed lanes and turned away from work. We drove through an older neighborhood, but nothing looked like a good place to stop. I pulled my dick out of my pants and he said, "Just like that? - you aren't worried?" and I told him that unless we were driving by a big truck or a tall building, no one would notice. Then he asked if I had napkins or something. I pulled the old t-shirt from the back of the seat and handed it to him. He just laughed.
I have seen his dick many times before - we used to shower together at the gym years ago. But I had never seen him hard. At first it looked very thick, but not long or any longer than mine anyway. His balls were shaved, and nice. I understood that he was not looking for an encounter with me but I was open for anything he was willing to try.
I could tell he was very nervous though. And that made me nervous.
I asked him if I could touch his dick and he said no - he laughed and said he didn't want me to wreck. But then, when I stopped at a stop sign, he said to go ahead. It felt good but I would have preferred to have not been in the vehicle.
As I drove, he continued to stroke and I would watch when I could. Finally we found a place to stop away from houses and where we could see traffic in either direction. I put on my flashers as though we might be making a call or something.
I wanted to suck him so bad but again, he was too nervous. I stroked him again for a minute but I was feeling really uncomfortable about the place. Then I asked him if I could go down on him. He said it would look pretty obvious if someone drove by, but I think it was the nerves or perhaps, he just isn't ready for that. It is a big step going from imagining an encounter with another guy to actually participating in it. I had been there and I didn't want to press.
Then, he began to stroke pretty fast and started to move the shirt in place. I stroked myself as I watched him make himself cum. His cum was white and thick and I wanted to taste it so bad. I thought about reaching over and taking some with my finger and tasting it just to see his reaction, but he used the shirt to wipe it clean. It was best that I didn't push any more.
I could see that sudden twinge of guilt coming over him and I put my dick back in my pants and turned off the flashers. He asked me if I was going to finish and I told him I was just too nervous, which was the truth.
We made our way out of the neighborhood and I told him that it wasn't a good place. I asked him if he'd like to touch my dick just to say he had done it, but he said, "maybe another time."
We were only a minute from work and by the time I dropped him off, I could hardly wait to get a hold of the shirt he had left his jizz in. I got to the parking lot in front of my building and I found the spot on the shirt where he came. It was already clear, but still damp. I placed my finger on it and took a taste. Yep, tastes like cum. I then sniffed the shirt several times - I can't explain my fascination with that almost bleachy smell, but it was intoxicating knowing I was inhaling my friends cum. I then had to compose myself before going back into the office. I thought of heading straight to the men's room and jacking, but by the time I got in, I chose not to.
After work, I got in the van and immediately found the t-shirt, now almost crusty from drying in the heat, yet the scent was still there. I was immediately hard again and knew I wouldn't make it home without relieving myself. I smelled the shirt and his stain at least five more times before finally pulling my dick out and stroking myself into the same shirt that he had used hours earlier.
I had an empty plastic bag in the van and I placed the shirt in it and continued to drive. I then started to feel awkward about the whole thing - wondering if it wasn't nerves that made him not want to do more, but if it was just that he wasn't interested in me. I also felt pretty weird about smelling a shirt that had been used as a cum rag by a friend - guilt I felt once sniffing a sister-in-laws panties once when the opportunity presented itself. But I got over it.
I had to stop at Home Depot on the way home so I deposited the bag full of DNA into a trash can there. I couldn't help but imagine some unsuspecting guy looking through the trash for a rag to use.