Real Housewives of Beverly Hills star Denise Richards has said that there has been a "big change" in her relationship with Kyle Richards during her latest appearance on Watch What Happens Live With Andy Cohen.

 "There's definitely been a change in our friendship," she said after a caller asked of her friendship status with Kyle. "And, people will see that as the show plays out. We've been friends for over 20 years and we never know what's going to happen in life. People will keep watching and see how it plays out," she continued.

Denise is at the front and center of the current season as the whispers of her rumored hookups with fellow cast member, Brandi Glanville have been front page news for months.

Brandi says the affair happened and claimed that Denise told her that she was in an open marriage. Denise denied the affair ever happened.

The fallout was captured by Bravo cameras.