Porn stud Mr. Marcus put together a premium cast for this allblack stroker. In the opener, sleek beauty Evanni Solei soaks up the sun (and a quart of baby oil) in a poolside rubdown with the director himself. The camera gives her gravity-friendly breasts plenty of attention. (The box cover proudly proclaims that every boob in this flick is 100% all natural.) The fineness continues with the lovely Baby Cakes, another lady designed for a joy ride: a too-pretty-for-porn face, a jaw-dropping rack and a snug-fitting little moneymaker. If black’s your color, Baby Cakes will drain your tank. On your next spin, give reality star Bethany Benz a run. Like any Benz, she looks great and handles well, and she makes even old pro Mr. Marcus pop off after one position. Cute, plump and reliable blasian Melody Nakai turns in another solid scene followed by a fine, buttpounding closer from beguiling Aurora Jolie. (She’s light, but that bubble butt gives her blackness away.) Mr. Marcus’s Sex Drive is one smooth ride (and a whole lot cheaper than a Lexus).