Belle de Jour author Brooke Magnanti insists she was a call girl 9 ^ w) Q, t' N9 b v5 v; ^ ; o9 A2 y/ S6 T8 |- ~% s6 YBelle 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 Morris% J2 {4 q3 O8 t% _6 e/ G- X