As featured in Oprah's O Magazine! Tristan Taormino's Chemistry series reaches new heights with the release of Chemistry 4: The Orgy Edition - an explicit chronicle of 36 hours in the lives of six professional porn stars taking a break from scripts, plots, and plans. Tristan takes them to a secluded house for the weekend and lets them loose to live out their fantasies. All the sexual hook-ups are spontaneous and completely up to the performers, and they waste no time getting naked before the cameras are even ready to roll! Sex begins as a one-on-one affair until whoever has the Perv Cam joins in, and pretty soon it becomes an incredible thirty six hour orgy. See what happens when Sinnamon indulges her insatiable appetite, Tyler is left alone with all three women, Penny pushes her boundaries, Evan puts on his tiger suit, Adrianna uses her feet in some unusual ways, and Johhny arrives late - and must make up for lost time.