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Looks like Scott Disick is up to his old ways again...

On this Sunday's Keeping Up With the Kardashians, Scott encourages Kris Jenner to let him book her birthday party at 1OAK in Las Vegas and she hesitantly agrees. 

The two head to Vegas with Corey Gamble and Malika Haqq but no one can find Scott. Then he casually shows up at dinner and it's obvious he's been drinking. 

"So, you booked me on this event and you've been MIA all day long, I don't even know what I'm supposed to do," Kris explains. 


He begins to become belligerent and Kris is fuming. She admits, "I'm seriously worried, I've really got to get him to slow down." 

However when he becomes more and more obnoxious Kris loses her cool...

Check out the above sneak peek clip from this Sunday's brand new episode to see the two go head-to-head! 

Tune-in for a brand new Keeping Up With the Kardashians this Sunday at 9/8c on E!