A model in Brazil set on getting the world's biggest natural bottom has told how cruel bullies taunt her over the size of her bum. DJ Vanessa Ataides poses in undated photo. She said she deals with prejudice for having a 126-centimetre butt. (@vanessa.ataidess/Newsflash) Fitness model Vanessa Ataides, from Brasilia, says she has to endure daily insults over her eye-popping 49.6 inches (126 centimetres) butt. Vanessa, 37, who boasts more…