Kim Kardashian is usually so supportive of her sisters, but not now!
The 34-year-old momma popped up on Sunday's upcoming episode of Kourtney & Khloe Take the Hamptons, basically to talk trash on her family!
[ Related: Kim Kardashian & Kris Jenner Go Goth For Rihanna's Diamond Ball ]
Kim is lounging with Kourtney Kardashian and Scott Disick when she says that Khloe Kardashian's booty is huge and that her little sister needs to lose some weight.
WHAT?! Khloe is in the best shape of her life! She looks fantastic!
Then, Kim turns the criticism on herself saying that she wants a "flat ass."
Thankfully, Kourt turned the conversation to something more uplifting, like trying to fix up their mom, Kris Jenner, with a young date.
Hit 'Play' (below) and tell us if you think Kim is out of line???