Sometimes I fantasize about standing in a crowded train or bus. The train is so full that people are sandwiched. I'm standing behind a guy, I don't even see his face but I can feel is cock against my ass. With every moment of the train I can feel his cock getting larger and pressing against me.
I pretend not to notice but I stick my ass out and slowly move it round and round against his cock.
I'm wearing a really short skirt and I feel him unzip his trousers and freeing himself. No one notices as his cock finds its way under my skirt. His cock is teasing me as its gently touching the entrance to my wet pussy. I want to fuck so right then and then but I close my legs and hold his cock captive between my dripping pussy and ass cheeks. Each movement of the train in torture and pure pleasure at the same time.