All-sex movies are difficult to evaluate: they clearly were made and are consumed in the same manner as a "dirty" magazine. If the pictures arouse, success.
HIS MASTER'S TOUCH, tossed in on an Alpha Blue Archives 3-fer with 2 major George Payne films, was filler back then and now. Its superficial content is 3 guys sitting around supposedly planning a Master's Thesis (even though they don't look like college material) and deciding sex is their subject matter. They have sex with each other in the shower and on a water bed, while the bulk of the mercifully short feature concerns MOS footage of four workmen humping each other in a storage room or bathroom.
IMDb dates this title as 1970 though it is likely several years newer (or 2 films with same moniker). Perhaps the only point of interest is the "choreography": the 4 blue collar guys forming a circle jerk then a daisy chain of stand-up anal sex, while "Feel Like Making Love to You" plays on the soundtrack. Some idiotic narration is tossed in, and as they used to say, that's entertainment.