The bottom of the box reads "Monster Butt Certified." Porn reality doesn't always live up to porn hype. But in the case of Big Butt Road Trip 4, we can vouch for director Mark Anthony's certification. Not only are these Brazilian butts certifiably monstrous, but they just keep getting bigger and bigger as the trip progresses.

Mark Anthony and his cast of homies tackle four wide loads on the first day - most of whom get it in the ass. Four more gargantuan cabooses get plowed on the second day - including a set of big booty twins. And the huge butt in the final scene deserves its own zip code.

Pre-nom Best Ethnic-Themed Video - Black.

Retailing: Monster butts.