Khloe Kardashian gym work out run dmc reality tv

At least she didn't flip off photographers this time!

On Friday morning Khloe Kardashian busted her booty at the gym in Los Angeles, speaking of rear ends, the reality starlet ignored questions about Kim reportedly getting fat injected into her butt.

She also stayed mum when asked about Bruce Jenner's plastic surgery procedures, and while it's pretty clear that Bruce has uh, altered a few things over the years, we really doubt Kim had anything done to her famous rear...