Teachers' Lounge at the elementary where my mother taught. Home freshman year for fall break and she asked me to stop by and help her move some things around in her schoolroom when I got to town. They had an afternoon assembly in the Cafetorium on the other side of the 1904 school building. So I waited in the basement lounge, which at one time had been the old coal furnace room. No sex partner yet at college, I was just shy of 20, and still bascially a walking erection most of the time. The lights were off and just some daylight from the high basement windows in the room. I felt the urge hit me and plopped down on the old couch to stoke one out. It also didn't take me long to cum at that age, usually three of four minutes, so I finished quickly. The janitor almost caught me though, I heard him pass by the door, the classic key ring jingle was the give away. Because of this I just pulled my boxers up and trapped all the cum on my chest under my shirt and of course my underwear too. I went out to my car and got some other clothes to put on and cleaned up in the staff restroom. It was fun and I think about it when I drive by the building (private offices now and not a school anymore BTW).