She's the royal maid of honour who very nearly, but not quite, managed to upstage the bride, and has a Facebook page dedicated to her derriere (54,000 fans and counting) - and now she might be set to marry her own 'prince'.
Sarah Burton for Alexander McQueen column dress - leading to her being dubbed 'Her Royal Hotness', Pippa has been busy planning her sister's wedding so she and Alex are biding their time. But they are very close and may well be the next couple to make an announcement once Royal Wedding fever has died down.
'They have been virtually living together in London, and Pippa, although very picky, thinks Alex ticks all the right boxes – he has the family pile in the country, a smart job in London and he is very handsome.'
Men all over the world will be letting out a collective sigh as we write...