Piper: I was a sweaty cow on 'Call Girl'

Billie Piper has admitted to feeling like a "sweating sea cow" while filming the upcoming series of ITV's Secret Diary Of A Call Girl.

Piper, who is expecting her first child with husband Laurence Fox in October, told OK! that her pregnancy made it difficult for her to portray high-class London call girl Belle de Jour for the second series.

She said: "When I'm playing Belle I have to play a sexually liberated, empowered young prostitute but unfortunately I felt like a sweating sea cow!"

The 25-year-old added: "This year I found the heat very uncomfortable and that, coupled with the fact that I was growing every day, the lack of sleep and the desire to just sit on my bum and stuff my face, was not conducive to work."

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