By Debbie Emery - Breaking Celebrity News Reporter

Lisa Vanderpump is inviting TV viewers inside her mega successful restaurants with her new spin-off show, and you can expect plenty of drama, as Lisa's two worlds collided in a very explosive way after she discovered one of her waitresses had an affair with her close friend and co-star's husband!

"Scheana Marie has worked for me for three-and-a half-years, and we do have this whole situation because Brandi Glanville would often be eating at Villa Blanca or Sur and Scheana would be there," Vanderpump tells Breaking Celebrity News in a conference call to promote Vanderpump Rules.

She went on to explain how at the Real Housewives of Beverly Hills season finale party, Lisa was shocked to the core after Brandi told her the sexy server had had an affair with her now ex-husband, Eddie Cibrian, while they were still married.

"I had no idea!" Lisa explains. "So I was put in a situation many times, where I had to say 'Scheana, I don't want you working today.' Or 'Scheana, I need you to do this section over there, as it was very uncomfortable for Brandi.' Some people even said to me, 'Why don't you fire Scheana?'"