See Photos of this HOT mother and daughter contesting for Miss BumBum

A mother and daughter competing in Brazil's Miss Bumbum competition have told how their obsession to win led to the mother's partner of six years walking out on them.

Bruna Ferraz, 35, and her daughter Eduarda Morais, 19, both admit they are desperate to be crowned the country's queen of shapely bottoms.

With less than two weeks until the grand final on October 9, Bruna and Eduarda both claim they will do anything to pip the other to the post.

'Winning means everything to me, it will change me life forever. But I know it means everything to my mum too,' said Eduarda.

'Now we're both in the final it will all depend on who's got the most beautiful bottom. I admire my mum's bottom. I hope mine will be as firm as hers when I'm her age.'