104-year-old twins say 'closeness' is key

When they were born premature in 1912, doctors gave Paulette and Simone the slimmest chance of survival. But 104 years later, the French twins say there's a simple secret to their longevity: sticking together.

With their long white hair tied back in ponytails and gold spectacles perched on their noses, Paulette Olivier and Simone Thiot are happy to pose for the camera at their retirement home in Onzain, central France.

"This will be fun!" they say in chorus.