underside of her ass-cheeks as if covered by the overhang of a soft fleshy carport. Shiny butt plugs look like surreal tractors burrowing into ass tunnels that spread just enough to accommodate whatever physically improbable stretch is required to make objects disappear into suctioning sphincters. Buttman applies clothespins to pussy lips, ties up Anita Blue's pendulous breasts, hangs weighted clamps from her labia... always approaching each new act with a like fascination while asking: "what if..." or "I wonder what would happen...". He relaxes and enlists the lovelies as eager assistants having out-of-body experiences while probing their inner-bodies' depths like pioneers discovering terra nova. Raven haired beauty Bella Dellamorte adds an element of danger... full body tattoos, fishnets, multiple clit piercings and a tough look contrasted by her soft moans of ecstasy, the result of a self inflicted triple-penetration. Watching Bella with a jeweled butt plug planted deep in her ass, her pelvic thrusts in sync with her arms simultaneously yanking a purple dong into her pussy and canvassing her clit with a little bullet vibrator, is like seeing poetry in motion. Blonde cutie Katie Summers and gorgeous Allie Haze (in ass-hugging white, stretchy leotards), are the out-of-control group on Disc 2. Allie's pussy friction with a huge "magic wand" plug-in vibrator, a wild untamed thing gazing close-up into the camera while choking herself and uttering phrases like "pervertedly beautiful" remind us that Buttman is a master of both psyche and physique. Her self-induced gag on a huge dildo illustrates that every part of a woman's body has stretch potential, every orifice available for lubrication and insertion. The lustful lesson learned by the students, subjects and observers of Professor Buttman's Stretch Class experiment is that this fascinating, erotically charged two-disc set can make four-plus hours seem like mere minutes... it's the century-old theory of relativity.

Buttman's Stretch Class 4 is a two-disc set with over an hour of behind-the-scenes footage, trailers, cast list and filmographies.