I was travelling with my wife and kids along a secondary highway in North Carolina back in the 1980's. It was close to midnight and everyone was asleep except me. My problem was that I was horny and had been massaging my penis and balls up the leg of my shorts, and had worked myself up to an erection to the point I needed relief.
When I saw the green sign announcing a rest stop ahead I quickly made up my mind I was going to pull in and go inside the men's room and do a quick jerk off to get the relief I sought.
As I pulled in to the parking lot there was only one car and a semi truck and trailer parked in the lot. turned off the ignition, my wife and kids remained asleep. I opened the door and felt the sweltering Carolina summer heat as I made my way up the walkway toward the smallish restroom. As I walked inside I immediately saw there was a sink, next to an occupied urinal, next to an enclosed toilette.
I waited patiently as an older gentleman appeared to be finishing up at the urinal. I was standing behind him against the wall and could see that there was a "glory hole" and I could see a whiff of smoke coming out of the quarter sized hole as the older gentleman at the urinal began to zip up. I then realized I had interrupted a situation between the older gentleman at the urinal and whoever was on the toilette blowing cigarette smoke through the glory hole.
The older man zipped up and turned toward me with a smile and stepped over to the sink as I stepped up to the urinal and unzipped. I could hear the water running at the sink as I reached inside my shorts and pulled out my thick, semi-erect and perfectly circumcised penis and tugged on my low hanging scrotal sac so that it too was fully exposed to the sight line of my neighbor next door sitting on the toilette. I was sure he was peeking through the glory hole, and lusting after my smooth and erect penis and puffy scrotal sac, fully exposed to this stranger's view.
I rapidly became fully erect as my sexual excitement grew. On my left was a man who was 30 years my senior, who was lingering at the sink and glancing over to peek at my equipment. On my right, peeking through the glory hole was another complete stranger, peering through the glory hole.
I looked down and noticed a hand under the wall of the toilette, giving me a sign that I understood to be a come on. I glanced over toward the sink and the older grampa and stepped back to the door of the toilette. The door opened up and a hand reached out and began to fondle my stiff, hose-length member.