Jemima Khan stepped out in a killer black dress to celebrate her 33 rd birthday recently.
Sources said that the heiress upped the glamour stakes after her boyfriend Hugh Grant made a comment about how good Liz Hurley looked in a recent advertising campaign.
According to reports Grant is thought to have complimented Hurley, his ex- partner of 13 years, on how great she looked in her new campaign for high street clothing label Monsoon.
A friend told the Mail: Jemima usually laughs along when he says comments like that.
But on this occasion she wasnt best pleased- and reacted by going all quiet.
She made a mental note to up the glamour stakes considerably. Patricia Johnson
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