Two young, naive beauties, one a platinum blonde with a fiery spirit, the other a brunette with a sweet smile, find their morality tested in the most public of ways. A mysterious man offers them cold hard cash to perform a lewd act on a bustling city bus, and they, eager to prove their worth, accept. The girls take turns servicing the man, their inexperienced mouths clumsily working his cock as the bus's engine roars, and the city lights cast their faces in a kaleidoscope of shame and pleasure.