Pippa Middleton and Prints Charming at Book Launch

Sister to the Duchess of Cambridge stuns at Ben Fogle's book launch

Would we expect anything less than fashion perfection from Pippa Middleton?

The royally fabulous sister to the Duchess of Cambridge stepped out in London Monday night at the book launch for English television presenter and adventurer Ben Fogle's new book, The Accidental Naturalist. Olympic rower James Cracknell was also in attendance at the event.

Check out Pippa's sexy style for the Shadow Dancer premiere!

The 28-year-old Pippa looked radiant in a fitted frock with orange and blue prints and pops of color. Nude pumps, simple jewelry and a stunning summer glow finished off the elegant and classy look.

The book launch is just another stop on Pippa's lifelong tour de couture—she recently stunned in a curve-hugging black dress at the London premiere of Shadow Dancer.

Take that, Karl Lagerfeld.