In the upcoming episode of Keeping Up With The Kardashians, a night of boozing turns ugly and makes a pregnant Kim Kardashian so upset, she threatens to call the cops.

In the 30-second preview video, Khloe Kardashian is feeling left out when her sisters Kourtney Kardashian and Kim ignore her as they shop for baby clothes. Kris Jenner recognizes Khloe's feelings were brought on by the attention first-time mom Kim has been getting. Jenner decideds to take Khloe out for drinks to cheer her up.

Jenner and Khloe go to a Mexican restaurant and sport sombrero hats. During their booze-fueled moment, Jenner slurs her words when she suggests that she and Khloe pull a prank on Kim.

Jenner and Khloe decide to cover Kim's home with toilet paper, and Kim is visibly upse when she discover the interior and exterior of her home has been covered in tissue.

"I am so pissed! If I wanted to call the cops I could!" Kim says.

The sixth episode of Keeping Up With The Kardashians Season 8 will air on Sunday, July 7 at 8 p.m. EST/7 Central. 

The show's newest addittioin, Bruce Jenner's son Brody Jenner, denied rumors in a recent interview that KUTWK is scripted. He said the reality show he previously appeared on, MTV's The Hills, was scripted.

"Well, The Hills was fake and the Kardashians is real," Brody told Digital Spy. "I don't know if you watched the final episode of The Hills, but that entire show was pretty much fake. I mean, we were all good friends but as far as Lauren Conrad and Audrina and all the storylines, that was all made up and that was fake. We were all acting," he explained. "As far as the Kardashians go, that's real life. I was going through that with my father pretty much just on a daily basis, getting to know him."

Watch the preview trailer for Season 8's Episode 6 at E! Online below.

Tags: Keeping Up With The Kardashians 8