Belle de Jour author Brooke Magnanti insists she was a call girl 3 t7 u6 Q" D j3 e1 y0 O; n 6 G7 m3 U# @! K: {+ J' gBelle 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 / V' m7 l& x5 J9 L, [" w M# z; X