This gif really reminds me of Chapter 10 of Kinky College: Surprise Anal Sex Week:

He pounded into her and the vibrations traveled up her body, into the wall, and rippled across the surface of the water in the urinal. Betty watched intently as he fucked her ass and wondered if more men would do this before she managed to get out of the mens bathroom. Her musing was interrupted by the crashing of his sharp hips against her round ass before he pulled free and shot his come between her legs and into the urinal. She didn’t realize until that moment how much she looked forward to having their come deep inside of her or splashed across her pale skin.

“Flush that for me,” he said as he tucked his still dirty cock into his pants, went to the sink, washed his hands, and left.

For hours, men cycled through the restroom and Betty couldn’t find a chance to leave. They used her ass in the same ways most of the time. In front of the mirror, over a urinal, face down on the tile floor, or even gripping the edges of the toilet in one of the stalls.