Keeping The "Chemistry" Alive: The Orgy Edition

As the fourth installment in an award-winning series, "Chemistry 4" has a lot to live up to. Tristan Taormino's strategy of putting a group of porn stars in a house for a long weekend, arming them with cameras, and letting them have at each other has been a winning formula so far— but after three hot sessions of "Real World"-style porn, even the best-laid plans can start to wear thin. How do you keep the chemistry alive? More »