[M][STR8][M/M]
Changing at my locker after work I hear the shower running on the other side of the wall from my locker cube. Sitting on the bench I think I hear a rhythmic slapping. I had to get my jeans on quickly before my cock was seen getting stiff in my underwear. On my way home i imagined walking into that shower nude. The co-worker hunched over, back to me stroking his hard cock. I walk up behind him, reach around and place my hand on his. He moans, takes his hand away and puts it up on the shower wall as I continue his pace. My hard penis is wedged in his ass crack, no anal insertion, as I start pumping my hips. He groans and I pump him harder. He quietly says he is gonna cum. I then begin to feel his cheeks clinch on my cock and I also start streaming cum up his crack to his back as his streams shoot out onto the shower wall mixed with the cascading water. We both wash, rinse and leave the shower going each to our own lockers to dry and dress. Never a word spoken.