Things are about to get shaken up on Vanderpump Rules, as a new cast member whom Kristen Doute isn't wild about is being added to the show.

In this preview clip from next week's Season 2, Episode 4, Lisa Vanderpump warns Kristen that she needs to be on her best behavior when Scheana Marie's friend Ariana Madix starts working at SUR.

"We're great," Kristen tells Lisa about herself and Ariana. "I know there's rumors going around, but we honestly are."

"I hope so 'cause if you're not, you're gonna have to make it," Lisa responds.

However, Kristen later tells us that she's actually unhappy about Ariana becoming her co-worker. "I hate that Ariana is going to be working at SUR, but I have to be the bigger person and stay on Lisa's good side if I want to keep my job, and I do," Kristen says.

"I know I am walking on eggshells with Lisa, but right now I actually feel really confident that I will be able to perform my job well and not lose my st because Tom and I are solid right now," Kristen adds. 

"Don't bite the hand that feeds you," Lisa warns her. 

Sounds like plenty of drama will be afoot when Ariana joins the cast. We can't wait!

Source: Bravo