A clandestine, cash-only exchange unfolds in a dimly lit gay shop. Two doctors, one new to the game, the other a seasoned player, meet to barter their services. The newbie tentatively sucks the veteran's enormous cock, his eyes watering as he struggles to take it all in. The veteran, meanwhile, expertly works the newbie's cock with his mouth, driving him to the brink of ecstasy. They switch, the newbie now more confident, taking the veteran's cock deep into his throat, gagging slightly but pushing through. The veteran cums hard, his body shuddering, and the newbie, now a pro, swallows every drop, walking away with a wad of cash and a newfound appreciation for the art of gay barter.