In Sunday’s episode of Keeping Up With the Kardashians, Kim Kardashian and her sister Khloe set out to prove once and for all that Kim does not have butt implants. The astute among you will probably note that neither sister mentions the possibility that she had butt injections.

“First of all who the hail, of a normal person, gets butt implants?” Kim asks whimsically as the sisters read the blogs together. “I mean, if you want to prove them wrong get an x-ray… of your ass to show there’s no silicone in there!,” suggests Khloe. “I think that’s an amazing idea,” says Kim.

The video clip doesn’t actually show Kim getting an x-ray of her butt, but she does pose next to what she purports to be an x-ray of her butt, which appears to my trained eye to be one solid mass. We’re supposed to be seeing bone on an x-ray– not a solid mass. Maybe she hopes her viewers don’t notice?

Here’s an x-ray of a patient’s side (for the purpose of this discussion, please ignore the coke bottle). Notice there is no white out or density in the x-ray? You can clearly see the man’s skeleton, whereas, you can’t see Kim’s skeleton below her waist.