Kim Kardashian accuses her sister Khloé of living "double life" following Lamar split

Speaking in Sunday night's (17.08.14) episode of 'Keeping Up With the Kardashians,' Kim says to Khloé, 30: "Khloé, I just want to know, why are you lying to me about this supposed boyfriend?"

The brunette beauty is clearly stunned by Kim's remarks and hits back:

"That's ridiculous!"

Kim replies: "Like seriously, you lead a double life. You go away at night and you have a whole new set of friends! Who are your friends?"

She then turns to the camera and says: "It's kind of annoying that I have to find out all this information on the Internet instead of straight from Khloé. If anything, my sisters are the first people I tell all my business to, so it's kind of weird that Khloé can be so secretive."

Khloé - who ended her marriage to Lamar last year following rumours he cheated on her with multiple women and was battling cocaine addiction - confirmed last month she has been dating French Montana, 29. The couple first sparked rumours they were romancing after they were spotted together on a night out in April, before enjoying a safari tour in South Africa in June.