Shirley MacLaine explains why she and Jack Nicholson never had an affair

Shirley MacLaine shared candid details about her love life in her upcoming memoir.

The 90-year-old actress, who previously penned her best-selling 1983 autobiography "Out on a Limb," will release her new book "The Wall of Life: Pictures and Stories from This Marvelous Lifetime" on Oct. 22.

During an interview with People magazine ahead of the memoir's publication, MacLaine, who had an open marriage with her husband of 28 years, Steve Parker, claimed that she had affairs with all of her leading men except two ...