Actress Billie Piper has signed up to star in a second series of the ITV2 hit Secret Diary of a Call Girl.
The writer of the online blogs has remained anonymous
The show, which was based on an online diary written under the pseudonym Belle de Jour, attracted just under 2 million viewers on its debut in September.
The new series, set to be broadcast next year, will see Belle's life get more complicated.
ITV2 Controller Zai Bennett said the show had been a "huge creative and commercial success" for the channel.
"The bold concept and slick production has really captured the heart of the ITV2 audience and we look forward to seeing more of Billie Piper as Belle," Bennett added.
The series' risque sex scenes recently earned it a nomination for best soft core production at the UK Adult Film Awards.
Belle, who wrote about her life as an upmarket prostitute, has remained anonymous since first publishing her diaries in 2003.
Her blog has also led to a column in the Daily Telegraph and two books.