Kim Kardashian's Butt Is Real

And she has the X-rays to prove it!

Kim Kardashian’s ample backside has oft been the subject of a “is it real or is it fake?” guessing game, and now the 30-year-old reality TV star is trying to set the record straight.

On an upcoming episode of “Keeping Up with the Kardashians,” the soon-to-be Mrs. Humphries headed to the doctor for an X-ray to prove that her tush is implant-free.

In a promo clip for the show, Kim explains to her physician that her sisters "dared me to get a butt X-ray, because there are so many rumors that I have butt implants, and I'm so tired of them."