Once, the world's most famous newlyweds, they're no longer newlyweds.
Two years later, they're expectant parents - and more in love than ever.
It's hard to believe two years have passed since Prince William and Kate Middleton became the Duke and Duchess of Cambridge at London's Westminster Abbey.
The royal wedding was a spectacle unlike any other, and not just because it involves a future UK monarch. William and Kate are the rarest of the rare.