In a new interview with In Touch weekly, Karen calls the Kardashian matriarch a "workaholic" and a "hustler," essentially saying that she is driven by money and power.
"It's called wanting power," Karen says. "Gucci purses, Bentleys, all the things I don't care about that she does."
Karen also claims that Kris was plagued by insecurities stemming from her childhood, where she struggled with her weight, her father reportedly drank a lot and the family had money issues.
Now, she says, Kris is "vain...and the whole world knows it."
Hmm...Definitely some interesting insight from Kris' sister.
Do you think any of that contributed to her split from Bruce Jenner?
Kris and Bruce Jenner aren't the only ones--see 10 other reality TV couples who called it quits.
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Gallery | The Curse of Reality TV Couples