Jane Fonda

In her memoir 'My Life So Far', the actress admitted that she and ex-husband Roger Vadim had invited others into their relationship, but she came to realise she only did it to please her partner.

Jane wrote: "Sometimes there were three of us, sometimes more. Sometimes it was even I who did the soliciting.

"So adept was I at burying my real feelings and compartmentalizing myself that I eventually had myself convinced that I enjoyed it."