Boob-tube jewel Life on Top has all the light-on-plot, low-on-tops excitement we've come to expect from Skinemax. It also has a jamambo-nanza of top-shelf talent baring all, softcore style. Mary LeGault, Krista Ayne, Mia Presley, and Heather Vandeven star as four Manhattanites living it up. Think of it as Sex and the Snizzy.