I'll never forget the first time I was jacked off by another man and jacked him off, too.
I was about 21 at the time. I went into a primitive restroom at a rest stop, one that was old and off a little-used highway. I went into a stall and sat down. Just as I was about to leave, someone else came in and went in the stall beside me. About then I noticed a very small hole in the partition. As he was standing, I sneaked a curious peek. Sure enough, I could see his dick as he peed.
This excited me, and I kept looking. He must have known, because when he finished peeing, he kept it out and began to play with it, making it grow. I had never seen another man do this, and it turned me on a lot! My own dick began to grow and I stroked it along with him as I watched.
After a minute, he turned and sat down. He leaned back as he pumped his dick, which I estimated to be about seven inches, close in size to my own. I then stood up to return the favor, standing so he could see my dick as I stroked it 'til the precum began to drip. Then he did the unexpected.
He reached his hand under the high partition and motioned for my dick! With my heart pounding, I knelt and moved it so he could reach it. He took it, and massaged it like a real pro. It grew harder than it ever had and the head swelled like a big plum. It felt sooo good! After only a moment, I began to cum, pumping an enormous amount of semen out in huge spurts over his hand and onto the floor. I almost fainted, because it felt so good! I could hear him whisper, 'Oh, yeah, beautiful,' as I shot about seven or eight ropes onto the floor.
Then he knelt down, and placed his own erection under the panel. It looked so good, dripping with precum! I took it and began to stroke softly, then faster, as it swelled and finally exploded with a geyser of cum! It went all over my legs and the floor. I was still hard, and this turned me on even more. I stayed kneeling, and using some of his hot semen, I began to stroke my own again. He watched as I did it, his own dick starting to grow again. After a few minutes, I shot another load of cum, which I had never done so soon before.
He whispered, 'Thanks, that was great,' then cleaned up and left. I waited awhile, cleaned up and recovered, and left also. I had many more great jackoff sessions thinking about that meeting later on!