British Prime Minister David Cameron arrived at the White House this morning to kick off the Washington leg of his official visit to the United States with his wife Samantha Cameron. While this is the first time that the Prime Minister has been joined by his wife for an official overseas visit, their respect and affection for each other was on full display.

On arrival at the traditional welcome ceremony at the White House, the Camerons' vehicle pulled up to the President and First Lady. Instead of exiting the limousine and immediately greeting the Obamas, Mr. Cameron chivalrously walked around to open the car door for Mrs. Cameron, and escort her back to greet the Obamas together.

Mrs. Cameron - wearing an elegant Roskanda Ilincic dress and navy blue pumps - patted her husband on the behind as they walked back toward the White House after the ceremony.

The Camerons have been married since 1996, and have three young children.  Their first child, Ivan, died in 2009 at the age of six after a battle with cerebral palsy and epilepsy. Their youngest child - a daughter, Florence - was born only a few months after Mr. Cameron took office in 2010.