Stranger jerking off on the bus
When I first moved out of my parents place I didn't have a car and took a bus to work. It took about 30 minutes each way.
One day I was sitting on a bench seat facing sideways. Just behind me across the aisle was a guy in between two rows of seats. The bus was mostly empty and I could hear his headphones. I watched him for a second, trying to figure out what he was listening to, when I saw his shoulder moving. I could tell he was jerking off, but I figured it was over his clothes.
When I scooted back to sneak a closer look I saw the thickest, veiniest cock I've seen to this day. He was squeezing it as he stroked and I could already see the precum glistening on the head. He was leaning his head on the window, looking out at the passing views.
After a minute of watching he caught me. His eyes locked on mine and I panicked, afraid to look away. He kept stroking, going faster as he licked his lips and looked me up and down. I wasn't going to flash him or anything but I kinda teased him, pulling the zipper down on my jacket to show him my cleavage under my tank top. He began jerking harder and gestured for me to look down. He slowed down, pumping his cock as he came. He shot sticky cum all over the seatback in front of him. I kept watching until he put his cock back in his pants. I looked at my phone while he gathered his things up. He got off two stops later and I never saw him again, but it was such a turn on I went home and masturbated thinking about it.
There are multiple thousands of videos of this scenario on the internet. I've watched at least a thousand of them. What I've never seen is a woman who smiled at some stranger jerking off, or, encouraged them in any way. Some of the videos even promise, " She look, she like ! " and they never do. Usually, the women look scared, or angry, and a few of them made snotty remarks to the perp. The only one I ever saw where the woman responded positively turned out to be staged. They were both yukking it up, afterwards. I'm not calling b.s. on this, but, it's certainly the exception to the rule.