Everything for Kate: Prince William Cancels Pippa Middleton's US Book Tour [PHOTOS]

In a past report, it was said that Kate Middleton's younger sister, Pippa, is all set to tour the United States to promote her book, but sadly, her brother-in-law prevented it from happening.

Saddened that her excitement has lead up to nothing, Pippa Middleton is heavily disappointed that Prince William ordered that she could not go through with her American tour to promote her book, "Celebrate: A Year of British Festivities for Families and Friends."

"Pippa was so excited about all the US promotion they were lining up. She was looking forward to the chance to put across the real her and was even considering moving there." says a source to NowMagazine.

Just recently, Pippa has revealed the downsides to being the younger sister of the Duchess of Cambridge, and it seems the list is getting longer after Prince William decides that her tour will not happen.

According to sources, Prince William does not want this tour to happen because she is protecting his wife, Kate's privacy. Scared that Pippa will say something to jeopardize her image, the Duchess of Cambridge has begged her younger sister to not embarrass her when talking to the press.

"Pippa's been summoned for a crisis meeting. It's been decided she needs more protection.Kate's personally overseeing it and has asked Pippa to agree to some intensive lessons in dealing with intrusion; what to say, what to wear - the lot." said a royal insider in a past report.

Some say that another reason why Prince William did not permit this tour is Pippa's stubbornness as she refused to attend any royal prepping for this said promotional tour. Pippa has expressed her frustration by saying that it is always about her older sister getting what she wants.

"It's not just about the money. She's more gutted that she can't do what she wants. Pippa's always there for Kate but doesn't feel like she's got her support when she needs it." added the source.