Kyle Richards and Lisa Vanderpump reunited in Los Angeles this week to film scenes for The Real Housewives of Beverly Hills season six.

Kyle Richards Visits Her Hamptons Boutique Amid 'RHOBH' Season Six Filming

Two months into production, the two women's relationship appears to be stronger than ever, and on Wednesday, as the UK's Daily Mail revealed, Richards and Vanderpump enjoyed a friendly lunch.

Monty Brinson Defends Kyle Richards On Instagram, Reveals His Wish For His Daughters

Richards and Vanderpump will be joined by returning housewives Eileen Davidson, Lisa Rinna and Yolanda Foster for the upcoming sixth season, as well as two new wives, Erika Jayne and Kathryn Eickstaedt Edwards.

News of Edwards' addition to the show was reported by Radar Online just hours ago.

Edwards has been “spicing things up and has been speaking her mind. Katherine is no shrinking violet, has very strong opinions, and is never afraid to share!” the source explained.

And, according to the report, Edwards and Richards have already butted heads.

“There is drama between Kyle and Katherine because of her friendship with Faye Resnick,” the insider explained. “Katherine has a lot of history with Faye.”

As for Jayne, Radar's source alleged, “Erika is turning out to be a bit of a dud. She is very quiet, and just seems to agree with what anyone is saying. In fact, Erika seems to be going out of her way to not be controversial. Erika should realize that this is a reality show!”