Kathy Hilton's daughter Nicky says 'The Real Housewives of Beverly Hills' has become 'mean-spirited' and 'negative'

• Nicky Hilton says "The Real Housewives of Beverly Hills" has lost its "light-heartedness."

• She said the show has become "mean-spirited" and "negative."

Nicky Hilton is no longer a fan of "The Real Housewives of Beverly Hills."

"I used to love the light-heartedness and escapism of the program," Hilton told E! News on Sunday. "But I feel like, recently, it's become a bit mean-spirited and negative."

Hilton's mother, Kathy Hilton, and aunt, Kyle Richards are sitting at the center of the show's season 12 drama. The pair have had some heartbreaking on-camera moments as they try to maintain their relationship.

During a trailer for part three of the show's reunion, Kathy Hilton is accused of saying she wanted to "destroy" her sister by Lisa Rinna.

"When I watch one of those shows, I want to laugh," Nicky Hilton continued. "I don't want to be sad. So, hopefully, they could be a little kinder."

Kathy Hilton is a friend of the group on the show and Richards is an OG housewife. Kathy attempted to promote Casa Del Sol, a tequila brand her family has invested in on the show's trip to Aspen this season with poor results. Kathy previously promoted the company during a holiday party in episode 12 hosted by newcomer Diana Jenkins.

Some of the ladies in the group, who had already been drinking and taking edibles, refused to try the tequila on camera and snickered on the couch during her attempt at getting them to do a second tasting.

She attempted a third time during a trip to a high-end hat shop with a bar in it.

Housewife Garcelle Beauvais asked: "Are we under contract to drink this tequila? I want to know because I didn't sign on the dotted line." Rinna, another housewife loudly name-dropped Kendall Jenner and went to order a shot of 818 tequila in the same episode.

Kathy became extremely upset that Richards did not step in to defend her. "Kyle doesn't do a fucking thing," she grumbled.

Nicky previously stuck up for her mother's right to shill on the show in an interview with Page Six in September.

"I think all of the women go on and promote their products," she said. "I don't see why she should be an exception."

"The Real Housewives of Beverly Hills" airs Wednesdays on Bravo and on Hayu in the UK.