Love all the other stories on here!
Thanks to everyone for their memories. I've been lurking on Solo Touch for quite some time now so I thought I'd offer up one of my own.
When I was a freshman in high school in the mid-90s, I developed a fetish for athletic-wear: jockstraps, cups, and spandex compression shorts. I also developed a habit of snatching loose articles of clothing out of the locker room whenever I had the chance.
One night, I snuck into the locker room for my regular check for open or unlocked lockers. I struck gold. On this particular occasion, a gorgeous varsity soccer player-a junior named Colin-had forgot to shut his locker tight. I opened it up, looked at the jumble of stuff in his locker, and pulled out a pair of his Umbro soccer shorts and his jockstrap. Amazing!
Usually at this point, I'd hastily stash my prize findings in my backpack and casually stroll out of the locker room. But tonight was different. Colin was incredibly good looking and my luck had been particularly strong tonight. Besides, it was super quiet in the locker room and I didn't think anyone was going to come in.
So I went to the very last aisle of the locker room, strained my ears to make sure no one else was around, and then quietly pulled off my cargo shorts and boxers. I then slipped on Colin's jock and shiny, silky soccer shorts, lay down on the bench, and proceeded to jack myself off. The way I like to jack off is to rub my cock through the fabric of my boxers.
Or, in this case, my stolen jockstrap and Umbro shorts. I rubbed really hard through the smooth shorts and jock pouch covering my cock. It was great!