TV
Rex Features
The former Doctor Who actress told The Sun that her parents were fine with her decision to play the part of prostitute Belle de Jour in the ITV2 programme.
Piper said: "They are okay with it. Nothing really shocks them when it comes to certain choices I make.
"My dad doesn't watch it, that would be a bit weird. But my mum finds it hilarious!"
Last month, Piper met the real-life call girl whose award-winning blog inspired the series.
More: Billie Piper, TV
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