MUST SEE: Prince William Caught by Kate Middleton Giggling at a Royal Event

Have you ever attended a formal event with another person and found something funny to giggle at?

Well, that very thing happened to Prince William Tuesday morning at a very formal royal event celebrating the 100th anniversary of the British Air Force at Westminister Abbey.  Luckily, he had his wife Kate Middleton by his side to quelch any potential laughter.

According to Harpers Bazaar, it was unclear what the Duke of Cambridge was giggling at.  However, before he could break into a laugh, Middleton turns and catches him in mid-giggle.

Video from the event posted to Instagram shows William explaining to his wife what he found so funny.  She must have found amusing as well since she also smiles at his response.

Unlike Meghan Markle and Prince Harry, William and Kate have tried to refrain from public displays of their affection for each other at royal events. Royal watchers regard this candid moment between the two as a pleasant surprise.