Khloe Kardashian DEFENDS Kris Humphries

Kris Humphries hasn't burned ALL of his Kardashian bridges -- it seems he still has a friend in Khloe ... who insists her sister's estranged husband is a "good guy."

Khloe was leaving La Scala in Beverly Hills yesterday when we asked how she felt about Kris' extortion case with his ex-girlfriend Myla Sinanaj.

Khloe -- who seemed pretty concerned about Humphries -- replied, "Well, that shouldn't happen to anyone ... Kris is a good guy."

We asked Khloe if she thought Kris and Myla really had a boyfriend/girlfriend relationship ... Khloe shot back, "I don't know who [Kris is] f**king, it's just not my sister, that's all I know."