Belle de Jour author Brooke Magnanti insists she was a call girl . D5 [1 N1 C$ a * b" e6 r5 K% _) Y1 u# U `: OBelle de Jour writer Dr Brooke Magnanti goes to court to defend her claims that she worked as prostitute, saying she will "present evidence that I was a sex worker" in unusual libel battle with her former boyfriend Owen Morris5 s% X$ S0 d! } m) q$ r