The doctor's fingers probe the patient's ass, stretching him wider. The twink's cock throbs, leaking pre-cum. Dr. Black, unable to resist, pulls out his own massive cock, rubbing it against the patient's hole. The clinic fills with their groans as the doctor pushes inside, fucking the twink hard and deep. The patient's body trembles, his cock pulsing as he cums, coating the doctor's hand in his sticky load. Dr. Black follows suit, pulling out and painting the twink's ass with his hot seed.