Veteran actress Joan Collins has won her fight to remove a sex story from Shirley Jones' new autobiography after branding the salacious account completely false. In her book Shirley Jones: A Memoir, The Partridge Family matriarch claimed she once declined an invitation to join a group session with her husband Jack Cassidy, and Collins and her husband Anthony Newley in the 1960s. The Dynasty icon fired off a cease and desist letter to publishers at Simon & Schuster after the tome was published to demand a retraction, and now bosses have agreed to her request. Collins tells TMZ.com, "We all make mistakes. I've made a few myself, but not with Mrs. Jones. I'm a serial monogamist." Simon & Schuster executives are removing Collins' name from digital copies of Jones' book as well as from future reissues.