Belle de Jour author Brooke Magnanti insists she was a call girl ) Q/ {7 n, k1 x- v! x 0 b2 P% V* o8 q* ZBelle 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* Y \' }4 T# \: K( ?. `, u