The wife of Britain's ex-leader Gordon Brown says she spotted Italian Premier Silvio Berlusconi asking for model Naomi Campbell's phone number at an official dinner.

Sarah Brown said in an interview with the Daily Mail published Saturday that she later joked about the episode with "Harry Potter" author J.K. Rowling. She did not specify exactly when it took place or whether Berlusconi approached Campbell directly.

Campbell attended an official banquet with Brown, Berlusconi and other world leaders during the 2009 G-20 summit in London.

Berlusconi has long been known to have an eye for beautiful women. The 74-year-old was recently indicted on charges he paid for sex with an underage girl, and then abused his influence to cover it up.