Dick Martin's early '70s classic gay porn feature The Magnificent Cowboys (from Jaguar Fims) is a well-produced period piece set in the Old West. Past Marlboro country, into Bull Durham territory - they roll their own.
Chuck was in a state of constant erection. Since losing his lover in an accident, he had to work his horse-ranch alone, leaving him no time to seek new companions, until the day he received a letter from a friend in the east. This real "friend indeed" was sending a replacement for Chuck's lover. From that day, Chuck vowed not to touch his cock until the new ranch hand arrived. His perpetual state of arousal was beginning to alarm the horses! But the great day was almost at hand.