The hallmark of Rocks That Ass 4 is diversity. The opener present a spy scenario... a few more standard (but hot) motel room encounters follow... while the finale finds Michaels playing fetish dungeon Master to Felecia and Bronze, complete with paddling action.
Michael is obviously still stretching his creative impulses. While the result is somewhat schizophrenic, the sex is uniformly good —though we'd be remiss not to mention a few big editing flaws. The first is the placement of promo material in the middle of the damned video, and the second is the complete overuse of a stylistic device which renders virtually all of the action in a disconcerting, herky-jerky motion. Bag 'em both, bro.