Britain's Prince William and Duchess Catherine were smitten with a three-week-old baby they met yesterday (26.04.12).

The royal couple - who will celebrate their first wedding anniversary on Sunday (29.04.12) - left onlookers in no doubt that they will make wonderful parents when they eventually decide to have kids after they cooed over Hugo Vicary at a Royal British Legion event at Goldsmiths' Hall, in London.

A source told US Weekly: "Catherine and William cooed over Hugo. Both of them were commenting how cute the baby was and they were both googly-eyed.

"William even cuddled him. So cute!"

Prince William was hailed as a "natural" father by Hugo's dad Vic, who said: "He was a natural. Catherine said the baby was very cute and had doting eyes on him."

Earlier yesterday, William and Catherine made a private visit to London's MI6 headquarters, where they met with spies at the Secret Intelligence Services in Vauxhall.

A source explained: "Their visit was top secret."

Topping off a busy day, the pair then attended an event at the Imperial War Museum in Southwark last night to help raise funds to build new World War I galleries.