I recently posted a story about how lubing my bicycle introduced me and a friend to masturbating with lube. Here is another story about my bicycle that you might like. It is also true.
I told the story of how I won a great bicycle in a raffle, and took such great care of it that I re-greased the wheel bearings with Vaseline, and how that lead to a great masturbation session in which a friend got into the picture.
Well, that isn't the only fun triggered by that bike.
I was in Boy Scouts, and we used to take bike hikes along the Cheasapeake and Ohio Canal, which goes along the Potomac River from Washington DC to Cumberland MD, about 180 miles. Some portions of it are crowded with hikers, bikers, etc., but when you get away from the access points, you sometimes can go for miles without seeing anyone. It is very peaceful biking along between the river and the canal.
One day when about six of us were out for a day of biking, I noticed that the vibration of the wheels bouncing along the rocky towpath was jiggling my penis, and it was starting to feel good. I got a boner, and pushed it down so it was in contact with my seat alongside my leg, and it felt better and better. I dropped back so the others went ahead (it was common for someone to do that to relax, and they'd catch up later). When the rest of the group was about a quarter mile ahead of me, I pulled the leg of my shorts up, freeing my penis so about half of it was sticking out in the breeze. It wasn't big yet (I was 13), maybe four inches all together, but it was long enough to get a grip on through my pants leg. Holding the handlebar with one hand, I played with my penis with the other, and rubbed it. It felt really good -- I think the feeling was enhanced by the boldness of masturbtating out in the open like that. I had to be careful one of the others didn't stop or I'd run up on him pretty quickly and he'd see what I was doing.
I did that for about five minutes, enjoying myself, and felt the inevitable coming. My penis started pulsing, and by the second or third pulse I started spurting all over my leg and down onto the ground. Oh, it felt good, though messy. I had slowed down and was wobbling as I lost concentration on my bike riding (don't do this on a road with cars around!), and was afraid I'd fall off, so I stopped to catch my breath and recover. After panting a bit, I got off my bike and stepped up to a tree. We always carried paper towels in case we needed to go to the bathroom, so I had one handy to wipe up with. It was all over my leg and a part of my bicycle, so I cleaned up well and buried the towel under a rock.
I got on my bike and caught up with the others, and nobody was the wiser but me!