Kate Middleton, who has been recently revealed to be pregnant with her second child following the birth of her first-born, may have a celebrity wedding dress fan.

George Clooney's fiancée Amal Alamuddin spent an hour and a half in the head office of Alexander McQueen, the same fashion designer who designed Kate Middleton's wedding dress.

"They seemed quite flustered as they sped through London to get to their meeting in time," one onlooker told the Daily Mirror.

Amal is set to marry George Clooney later this month and is currently living in Italy.

Kate Middleton's wedding dress made headlines for its popularity among fans of hers.