Catherine, Duchess of Cambridge, isn't the only Middleton to strut her stuff on the runway.
Her little sister Pippa, along with a group of Edinburgh University undergrads, once walked at a charity fashion event in 2004.
A student who participated in the show told the Daily Mail, "Pippa was a very pretty girl with a phenomenally trim, sporty figure. She looked great -- and she knew it."
Check out Pippa below in a draped, blue dress with some sort of embellished butterfly at the neck. It might not be sheer (and it probably won't fetch $125,000 at auction), but girl can work that blasé mannequin mug.
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