On my old swim team, there were not many kids. And on this Monday there happened to be just another girl and me at practice. So afterwards I was the only guy in the locker room. Being kinda sensitive with nudity in locker rooms and knowing that when I get older I would have to try and get over that, I decided to shower and walk around naked.
Well, anyway, I got an ENORMOUS boner that would not go down. Not when I counted the tiles on the floor of the shower room, not when I forced myself to think about other things than the fact that I was naked and alone in a locker room. So eventually, I thought to myself 'Fuck it, I'm horny as hell, I'm just going to get it over with'. So then I walked around the rows of lockers slowly stroking my cock, trying to pump my hips a little as I walked.
Eventually, I stopped in front of the full length mirror they had on one wall, and spread my legs apart and just jacked my heart out, right hand pumping my meat, the left running up and down my body between my legs and stuff, my hips moving and my legs spread out, just watching myself in the mirror and not wanting the pleasure to end. But I couldn't stay in there forever or else the coach would come in, so in my hazy-with-pleasure thoughts I realized I should finish up.
So I moved a little closer to the mirror, pressure and intensity of my jacking intensifying until BAM, I came all over the mirror. I couldn't resist sticking my softening dick against the mirror and rubbing it around. Then I remembered time was a tickin' so I quickly grabbed a paper towel and cleaned up, got dressed, and left. No one knows what I did, and they won't ever. Happy jerkin'!