Kate and Pippa Middleton 'extremely close' and find some protocols 'quite funny'

ok.co.uk:

Kate and Pippa Middleton are "extremely close" with the sisters talking "about everything", a royal expert said. Pippa, the younger sister of The Prince of Wales who is celebrating her 40th birthday today (Wednesday, 6 September) made her first noticeable public appearance when she served as Kate's maid of honour during her wedding to Prince William in April 2011.

She has since remained in the public eye while supporting her older sister and future Queen, although tends to keep her private life out of the spotlight with her husband James Matthews and their three children, Arthur, 4, Grace, 2, and Rose, 1.

While it must be hard to navigate life with a worldwide famous sister, royal expert Jennie Bond spoke exclusively to OK! and said Kate and Pippa remain "extremely close, chat as often as possible and meet whenever they can".The journalist and TV presenter continued: "They talk about everything and I very much doubt that Catherine expects her sister to stand on ceremony when they are together. "In public, of course, Pippa pays due respect to the future Queen, but I suspect they probably both find that sort of protocol quite funny." Before adding: "The fact that she [Pippa] has married an extremely wealthy man, James Matthews means that the relationship between the two sisters has remained quite a balanced one. "Pippa and James have a riverside mansion in Berkshire, less than an hour’s drive from Windsor (where Catherine lives) and half an hour from their parents in Bucklebury.