Pippa Middleton has not included Kate Middleton in her entourage. Still, both of them are close sisters and Kate Middleton will also be part of the grand celebrations. Kate is also planning to give Pippa a lavish send-off.

Hence, the Duchess of Cambridge will give her younger sister a big bachelorette party. "Kate is arranging a no-expenses-spared weekend at a luxury resort in the Swiss Alps for Pippa and 15 of her closest friends," according to Life&Style Magazine. There is a planned schedule of days of skiing, ice skating, spa treatments and snowmobiling.

"Kate is hiring private chefs to cook a lavish 10-course tasting dinner featuring some of Pippa's own dishes," they continued. That is not all. "She's arranging surprise performances by the likes of Ellie Goulding," the source said. "And possibly even bigger stars."

While the closer details of Pippa's bachelorette party are not officially out, there are plenty of guesses and speculations, while every precious weekend for the plans too are getting blown away.

Pippa's marriage date with her hedge fund manager fiance, James Matthews, is May 20, according to Us Magazine. It is scheduled to happen at St Mark's Englefield, Berkshire, followed by a reception at the Middleton estate, situated only seven miles away. All the grounds of the home will be covered by a luxury marquee.

"Pippa has a specific vision and feels she's learned enough about planning to get stuck into it herself rather than handing it all over to a planner," the insider adds. "She doesn't want it to be too expensive or look gaudy. Classic and elegant are two of the words she used to describe it."

It will be an interesting ceremony. "Princess Charlotte is going to be one of the flower girls," says a source. "They're planning for Prince George to be a page boy." Kate will read out an interesting extract during the ceremony, but she will not walk down the aisle before her 33-year-old sister.

Tags: Kate Middleton duchess of cambridge Pippa Middleton bachelorette party james matthews