Prince William and Middleton
KARWAI TANG/ALPHA/GLOBE; Toby Melville/REUTERS/Landov
The two, both 25, attended a party earlier this month at an army barracks where William is posted as an army officer, the reports say.
In addition, William has invited Middleton, who is an accessories buyer at a company called Jigsaw, to the Concert for Diana, in memory of his mother, scheduled for London's Wembley Stadium next Sunday, the Mail on Sunday reports.
The paper also claims the couple kissed at the June 9 army party, and that Middleton will spend time with William, his brother Harry and Harry's girlfriend, Chelsy Davy, backstage at the Diana concert.
Per custom, a spokeswoman for William's Clarence House office declined comment on the stories. "We don't discuss William's private life, it's a matter for him," she said.
Earlier this month, Joss Stone denied a report that she's close friends with the royal – who only last week, on Thursday (his birthday), gained access to the estimated $500,000 to $600,000 annual interest generated by the $13 million left to him by his mother.
