As far as glamorous double dates go, it was hard to beat Princes William and Harry with their respective girlfriends, Kate Middleton and Chelsy Davy, at London's Boodles Boxing Ball June 7. With the brothers in black tie and their sweethearts in evening dresses (Kate in a pink halter by Issa and Chelsy in an electric-blue satin ruffle dress from London shop Karen Millen), the foursome watched a pal take a licking in a charity fight. While Will and Kate, both 26, were discreetly affectionate (his hand on her back), the "more touchy-feely" younger couple shared a kiss, a guest says. The next day, Zimbabwe-born Chelsy, 22, cheered on Harry, 23, in a polo match in Gloucestershire. Though not close, Chelsy and Kate, who is working for her parents' party-supply company, "get on well," says a mutual acquaintance. "They've been thrown into this strange world, so they have something in common."

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