The doctor, a tall, muscular man with a thick, veiny cock, watches Billy's nervous fidgeting with amusement. He decides to turn the tables, asking Billy to undress for a "check-up." Billy, hesitant but aroused, complies, revealing his smooth, hairless body and hardening cock. The doctor, now fully erect, approaches Billy, running his hands over Billy's chest and abs. He guides Billy's hand to his own cock, encouraging him to stroke it. Billy obeys, his own cock twitching with excitement. The doctor, pleased with Billy's eagerness, pushes him down onto his knees, ready for more.