Pippa Middleton

Pippa Middleton

Pippa Middleton is still very close to Britain's Duchess Catherine.

The Duchess of Cambridge's younger sister hit the headlines worldwide for her pert derriere when she acted as bridesmaid during the Royal Wedding in April 2011, but hasn't been spotted with her sibling as much since Catherine married Prince William and her royal duties became a priority.

Speaking out for the first time ever in a televised interview with Today's Matt Lauer, which will air as a two-part world exclusive on NBC next week, Pippa revealed Catherine's newfound superstardom hadn't affected their sisterly bond.

The 30-year-old party planner explained: "Obviously she has pressures that she's taken on and things. But we spend a lot of time together. We still do a lot together as a family.

"And I think that's really the heart for all of us is having a really close family that we can sort of be normal with each other, treat each other normally. And that's sort of kept us all affixed to the ground."

Matt asked: "So you can call any night and say, 'Hey, Kate, it's Pippa. Let's just do girl talk like we used to'?"

She enthused: "Yeah, we do we have a very normal, sisterly relationship. We're very close. And, you know, we support each other and get each other's opinions and things."

Meanwhile, sources told the New York Post that NBC had been after an interview with Pippa for a while and the network was set to offer her a correspondent's role, but the brunette beauty's spokesperson has since denied the claim.