JUNK IN TRUNK DEPT.: Is KIM KARDASHIAN’s bulbous butt for real? She’s parlayed her biggest…er, asset into a showbiz career that includes an E! TV reality show, and a Playboy glamour shoot that debuts her undraped derriere in the December issue – but rumors are rampant that Kim got an implant! Not true, says an upclose witness who really knows the skinny – Kim’s working a hustle in her bustle, but it’s a specially designed booty booster that consists of prosthetic padding tucked into heavy-duty elastic pantyhose. And here’s a bummer, fan fellas: Photos of Special K’s backside, my source reveals, were digitally enhanced for your viewing pleasure!