In a dimly lit clinic, Dr. Gayle administers a unique stamina test to his patient, Ashton. The doctor, with a gleam in his eye, unzips Ashton's pants, revealing a growing erection. "Just relax," he says, wrapping his hand around Ashton's girthy cock. He strokes slowly, building a rhythm as Ashton's breath deepens. The doctor's other hand explores Ashton's chest, tweaking nipples as Ashton's hips thrust forward, seeking more friction. Dr. Gayle smiles, "You're doing great. Let's see how long you can last."