A beaming face and close walk with her beau Alex Loudon at a wedding party added fire to the rumor that Pippa Middleton is all set to walk down the aisle very soon.

Guests present at the marriage ceremony of Thomas Sutton and Harriet Colthurst at St Mary and St Nicholas Church in Wilton, Wiltshire, said Pippa in a pillbox hat and Alexander McQueen designed silk patterned frock almost overshadowed her sister Kate who wore a mid-length raspberry colored lace dress.

Pippa, who turned 28 this month, has been courting Alex for over a year. Alex, 31, is a former England cricketer turned City banker and the blue-eyed-boy of the Middleton's family.

Close friends of the couple confirmed that even after many ups and downs that the couple faced lately, they are still going strong and Pippa has already moved some of her clothes and belongings into his would-be's home near Parsons Green in West London.

Pippa's favorite designer Alice Temperley is already planning on her wedding gown.  She's so beautiful - she's perfect and her bum is perfect - it would be such an honor, said Alice.