A true story I fondly recall. 20 at the time back in a time when sex and things sexual were kept behind the drapes, just before the pill and the late '60's revolution.
After a Saturday night date as a junior in college one of the things we often did was to hurry back to the frat house to catch the 11:30 PM broadcast of 'The Twilight Zone'. The girls dorms closed at 12:00PM but we had a standing deal to meet back there and enjoy the show.
On one such night I had just sat down with a couple of other guys and a younger couple, who had been to a dance in a neighboring house, came in and sat to the side and behind us to my left and directly behind the two other guys. They had been dating for some time and she was on his lap. She was much shorter than him and was able to turn her head toward him to begin making out. Almost immediately he slid his hand up under her skirt and the material began to rythmically rise and fall. It was winter and she was wearing a beautiful black and white hounds tooth tweed skirt. They continued to kiss and the skirt continued to rise and fall. I was transfixed as I knew she must know I could see them and what was transpiring. It got me so completely hard I almost lost it myself.
After about 10 minutes she kind of wiggled around a bit but the view was slightly better as I could see her white undies from time to time. In time I heard a deep breath and her legs kind of clinched together as the skirt was wildly, but silently, jumping up and down. He had slowed and stopped and then they uncoupled. They stood up and started to leave and she looked down at me and winked. Of course my reaction was to smile and I wanted to ask him to smell his fingers to get a vicarious thrill of that remarkable scent of a woman. I didn't, I just went to the shower and had a wonderful jerk off.
It was a magical scene to me and one I have remembered fondly for many years now.