In the heart of Wisconsin, a group of straight, unsuspecting men find themselves in a compromising position when they board the infamous 'Bait Bus.' The gay porn stars driving the bus target these 'cheeseheads,' offering them money to suck cock in exchange for a free ride. The men, initially shocked and hesitant, gradually give in to the temptation of easy cash and the thrill of public sex. The bus's windows fog up as the men eagerly suck and stroke the wandering gay porn stars, their inhibitions melting away like the cheese on a hot plate.