Piper: 'I may have ruined my career'

Billie Piper has admitted that going topless in Secret Diary Of A Call Girl could have damaged her Hollywood career prospects.

In an interview with TV Guide, Piper confessed that few A-list actresses show their breasts.

She said: "Someone said to me the other day, rather viciously, 'What A-list stars do you see get their t*ts out?' And then I suddenly start thinking, 'Oh, my God, what have I done? I've ruined my future career!'"

Secret Diary Of A Call Girl, which sees Piper play a high-class prostitute, debuted to record ratings on US cable network Showtime when it aired last week.