Billie Piper is receiving advice from a dominatrix for her role in new show Diary Of A London Call Girl.

The former Doctor Who actress plays a high-class hooker in the eight-part ITV2 series, which will be screened in the winter.

An ITV spokeswoman told The Sun: "They do have a dominatrix on set to advise. It's about prostitution and they want to get it right."

The show's plot is based on an online blog which was written by an anonymous sex worker.