Rough Riders promo:

A visit to the doctor really helps these guys. His strong mouth and machine really give their willing cocks and asses a very good therapy.

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Color Climax promo:

A nervous patient is advised to strip naked by his horny bearded doctor. A blowjob is slowly administered until he is aroused and hard and ready to take a huge mechanized dildo up his asshole. As the dildo butt fucks him in a steady, rhythmic motion, the doctor and the patient's friend exchange blowjobs until the spunk starts flying.