Australian christian evangelist born without legs and arms, Nick Vujicic and his wife are expecting twins(photo)

Australian Christian evangelist, Nick Vujicic and his wife are expecting a set of twin girls.

The motivational speaker, popularly known worldwide and the "Limbless evangelist" made the announcement last July. His wife Kanae took to Facebook on Friday, to share a photo of her growing bump.The couple already have two boys.

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Nick was born with tetra-amelia syndrome, a rare disorder characterized by the absence of arms and legs. He is one of the seven known surviving individuals planet-wide who live with the syndrome.