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Britain's Prince William (L) is pictured

Britain's Prince William (L) is pictured with his girlfriend Kate Middleton after his graduation ceremony at RAF Cranwell air base in Lincolnshire, on April 11, 2008. Britain's Prince William graduated as a Royal Air Force (RAF) pilot on Friday after successfully completing an intensive flying course.The prince, 25, received his wings from his father Prince Charles in a graduation ceremony at the RAF Cranwell air base in Lincolnshire, east central England. AFP PHOTO/MICHAEL DUNLEA/POOL (Photo credit should read MICHAEL DUNLEA/AFP via Getty Images)