Earlier I was waiting for someone who I needed to pickup from an appointment. With an hour or so to kill, I sat in my car in a mostly empty parking lot, browsing reddit. It seemed like nobody was in their cars and I could easily see anyone coming out of the building and into the parking lot, so I thought I'd take advantage of it. It seemed the perfect opportunity to manhandle myself and so I unzipped myself and to stroking. My shaft was throbbing and the long strokes were building in pace, when I saw movement in the corner of my eyes. Three spots over, the car with heavily tinted windows that I thought was empty, had two women exit out of it. I casually closed up my pants, unsure if I'd been spotted and continued to try and edge myself through the denim while I waited for them to leave. But they took too long and more cars began to fill the lot before I could finish. Too bad they didn't come over and ask to watch!