A fat chic being penetrated by two men in the ass and vagina. Since she is fat and usually disgusting, but willing,the men work fast to get it over with.
Doublebacking is a method by which the ass is wiped in a 2 stroke motion,the first pass is to get the ass about 80% fecal free and the return stroke is wipe clean any residue and stains left behind due to soft stool