As it turns out, ragging on Real Housewives of Beverly Hills' Brandi Glanville is a team sport, if you ask Kyle and Kim Richards.
Shortly after Kyle got in her digs over Glanville's potty mouth and slammed her parenting skills, Kim is taking her shots on Monday's all-new episode.
Gathered with the rest of the cast for a spa party at Adrienne Maloof's house, former model Glanville can already sense she's on the outs with the women.
"I did a couple of spa treatments where I didn't have to talk to anyone on purpose because I was scared," reasons Glanville, who had her crutches hidden by the Richards sisters at Dana Wilkey's game night shortly before the spa party.
Taunted by insults from Glanville -- including being called a "slut pig" -- Kim opts not to interact with her cast member, in an effort to ward off negativity.
"Know what I've decided? [She's] not worth my time," Kim tells her sis Kyle in a sneak preview from Monday's show. "I don't like anyone who's going to be negative [and] talk like that...not worth my time."
Kyle agrees, calling feeding into Glanville's behavior like feeding a "piranha."
But once Glanville is out of earshot, Kim can't resist getting in her own jabs.
"I don't even want to look at her," she seethes. "I don't think she's cute. I don't think she has a pretty mouth. [She has a] dirty, dirty ugly mouth, like a sewer! Not someone I'd like in my house. No, thank you!"
The Real Housewives of Beverly Hills airs Monday at 9 p.m. (EST) on Bravo.