In the new episode of Keeping Up With The Kardashians, Rob calls Kim "a whore" while the family vacations in Bora Bora. Kim had called him a idiot.
Kris Humphries jumps in and puts Rob in his place.
"How you deal with your sister in front of me, you're not gonna call her that in front of me" Kris said.
The new episode of Keeping Up With The Kardashians airs Sunday, September 4, 2011 at 10 PM ET/PT only on E!
The season finale for Keeping Up With The Kardashians airs Monday, September 5, 2011.