Billie Piper is set to meet the real-life Belle de Jour, whose exploits as a high class prostitute inspired Secret Diary of a Call Girl - the drama in which the actress stars.
Their encounter will be captured for a new half hour ITV2 programme titled Billie and the Call Girl Bare All.
The show comes after Dr Brooke Magnanti's decision to out herself as the author of the Belle de Jour story, which details life working as a prostitute in London.
Dr Magnanti started out as an anonymous sex blogger and a novel on her exploits was adapted into the ITV2 series which stars Piper.
The new programme is billed as "a fresh insight into Brooke's life and Billie's portrayal of her".
Piper said: "I am really looking forward to catching up with Belle again."
Dr Magnanti added: "This show will be the last word on what it was like to be Belle: how my sexuality was formed, how I came to the work, what it's like to be portrayed on TV.
"Viewers will get an exclusive look at the real woman who lived as Belle, actually becoming her one final time."
Billie And the Call Girl Bare All has been commissioned for ITV2 by Diana Howie, ITV factual commissioning editor and Zai Bennett, ITV director of digital channels and acquisitions.
It will be produced by Tiger Aspect Productions, which also produces the drama. A new series of Secret Diary of a Call Girl is also lined up to run in 2010.
Ms Howie said: "We're delighted that Billie and Brooke have agreed to make this programme.
"There are no two people better placed to bring to life this extraordinary story.
"This will be a definitive, revelatory and entertaining show that will see them dispel the myths and expose the truths behind one of the most fascinating diary blogs of the modern era."Reuse content