"Truck Stop Muscle" is the story of a guy's obsession with the bearish, macho men who frequent a truck stop to have hot pig sex, a familiar setting given erotic freshness due to the creative and forceful direction of Phil St. John. Mr. St. John eschews the kiss-suck-rim-fuck formula (in that order, always) that makes a lot of gay porn predictable. Instead, he takes his cast in a different sexual direction with every scene, which is both intriguing and exciting.