It was late in the evening as I was heading down the hall towards the men's room. As I was passing the women's toilets, I heard a squeaking noise from the other side of the bathroom door. I thought that it was a bit odd since I didn't think anyone else was working this late. It was the lateness of the hour that got to me as otherwise I would have never have even considered opening the women's bathroom door. It was a good thing that this company oils its hinges well. With it being after ten o'clock at night the bathroom only had about a quarter of its lights on when I opened the door and quietly stepped inside. It was then that I heard a female voice.
"Ummmm...Nummm...oh fuck...yeah" I heard the voice panting.
Between that and the squeaking sound I managed to work out that there was indeed someone in there trying to get off. I ducked my head down and scanned the space under the stall doors until I saw one with feet inside the stall. Nice feet I thought as I saw they were splayed wide with a pair of sensible blue pumps set to one side. I now wondered how I was going to find out who it was inside the stall without being caught. Slipping inside the stall at the end I was now two stalls away from where the woman was sitting, her voice was lower and softer now and I could also hear little fluttery noises coming from deep in her throat. Taking my shoes off and setting them on the ledge of the cistern I climbed up on top of the toilet pan after putting the seat down quietly. Good thing I did a lot of push ups when I was younger, my arms now up to the task of getting up on top of the stall wall.
Of course, the bonus was that with my shoes out of view and me at the back of the stall I was pretty much invisible to a casual onlooker. I balanced my belly against the wall and poked my head out a little further and finally I saw what was going on or should I say getting off more like. She was a nice-looking woman who was wearing a frilly yellow blouse that was gaping open and had long black hair, medium boobs and had a nice pair of smooth legs. Her panties were out of my sight so were probably on the floor with the way she had spread her legs. She was now leaning back on the toilet seat and had three fingers sliding in and out of her wet pussy. With one hand mauling her left boob her other hand was busy fingering her pussy.
She must have been pinching her nipple really hard as it was red and stuck out like a cherry on a sundae ice cream. Her eyes were closed which was just as well as I had a hard-on from the scene, I was engrossed in watching. Her fingers now started thrusting in and out of her faster and faster as she flipped her thumb against her stiff nipple, she began muttering to herself again.