'RHOBH' Season 9 Spoilers: Watch the Cast Pick Sides After Kyle and Lisa's Fight [Sneak Peek]

A line has been drawn in the sand on Season 9 of Real Housewives of Beverly Hills, and much of the cast is standing on the side of Kyle Richards. Following Kyle's latest blowout with longtime friend Lisa Vanderpump, the cast will—unsurprisingly—ally with Kyle against Lisa.

In a sneak-peek clip of the upcoming episode 9, airing on Tuesday, Kyle rehashed the chain of events that sparked her fight with Lisa, during which she was kicked out of her former friend's home. "I went to Lisa's house. She said, 'You think I did this on purpose, then there's nothing left to say! Get out of our house!'" Kyle recalled over dinner with a few of her castmates.

"That's not friendship, that's bulls**t," Erika Jayne said.

On the last episode of RHOBH, Kyle confronted Lisa over two articles Dorit Kemsley believed the restauranteur leaked to the press specifically about her. Lisa denied the accusations but was highly offended Kyle would even believe she was capable of such a thing. The ordeal erupted into a huge argument—even Lisa's husband Ken Todd got in Kyle's face over the matter—thus leading to the end of Kyle and Lisa's friendship.

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Later on episode 9, Denise Richards seems hesitant to pick a side. Although she doesn't name anyone in the clip, she tells her husband Aaron Phypers that she doesn't want to get on one of the housewives' "bad side."

"She plays f**king dirty," Denise said.

Meanwhile, at Villa Rosa, Lisa uses humor to get over the pain of her rift with Kyle. "I could say I'm hurt, but I'm not going to stand here and say what a f**king b***h she was. Ha. Just said it," she told her husband.

The division among the group will likely increase as the season continues. Many fans know Lisa discontinued filming with her castmates after her explosive showdown with Kyle, and the women have not spoken since.

However, Lisa did note that she was "not proud' of her behavior during her fight with Kyle. While watching episode 8, which aired on April 2, the reality star revealed she "was probably still overly emotional" as the episode was shot the day before her birthday. Lisa tweeted "life was challenging" at that time, which marked her first birthday since her brother Mark Vanderpump's death.

Real Housewives of Beverly Hills airs on Bravo on Tuesday night at 9 p.m. ET.

'RHOBH' Season 9 Spoilers: Watch the Cast Pick Sides After Kyle and Lisa's Fight [Sneak Peek] | Culture