The bubble-butt - THE BEST ASS if there is no cellulite in the picture, this is the grabbable ass that all men want their girl to have. Enough Ass to fill a pair of jeans, but ONLY acceptable on a girl who’s in shape, otherwise it’s clearly just a fat ass. It almost seems that a girl with the bubble’s spine turns out more at the bottom and defines a clean line between lower back and butt. This is top notch shit here fellas… holy shit i think i’m drooling. Tawnee Stone is a quality example of the bubble butt.