In 'Cash for Ass,' horny, broke gay twinks prowl city buses, hungry for more than just a ride. They flash their 'Money on My Mind' signs, enticing passengers to engage in a dirty, discreet transaction. These anonymous hookups involve sloppy oral, deep-throating, and raw, public ass-fucking. The thrill of getting caught adds to the excitement as these strangers satisfy their carnal desires in the most unexpected of places.