An anonymous Miami artist finds himself in a compromising but thrilling situation on a bustling city bus. A smooth-talking stranger propositions him for an erotic massage, and with a mischievous grin, the artist agrees. The stranger's skilled hands explore the artist's body, igniting a fire within him as the bus rides through the city. The artist's ass is the final frontier, and the stranger eagerly takes the plunge, giving the artist a public pounding he won't soon forget.