Lisa was stunned but managed to reply, "Well, if you're gonna learn it, you better learn it right."
"I never thought in a million years that my own children would read the book," she later told Bravo cams, holding up a copy of "Rinnavation: Getting Your Best Life Ever." Rinna then proceeded to read lines from the chapter in question but could not keep from laughing. "How could I have put this in a book?"
"The Real Housewives of Beverly Hills" airs Tuesday nights on Bravo.