Kate Middleton Joins Prince William for His Birthday

The royal lovebirds were under a gazebo on the drizzly mid-summer's day in Gloucestershire, England, when Middleton, 26, took out her camera.

She shot away, gleefully showing both William – who turned 26 – and his group of pals the images on her digital camera.

"She was happy to show her pictures to everyone," says a witness.

In June 2007, Middleton and William insisted they were "just good friends" following reports of a reconciliation. Middleton and her family attended the Concert for Diana at Wembley Stadium, where she and William sat two rows apart. The couple were subsequently seen together in public on a number of occasions, and several news sources, including the BBC and the Daily Mail, stated that they had "rekindled their relationship." Middleton also joined William and Charles on a deerstalking expedition at Balmoral and attended the wedding of William's cousin, Peter Phillips, even though William, due to a prior commitment, did not. In April 2008, Middleton accompanied William when he was awarded his RAF wings at the Royal Air Force College Cranwell. On 16 June 2008, Middleton attended William's investiture into the Order of the Garter along with the Royal Family.