When Nina Dobrev stepped out for 2013 San Diego Comic-Con, she chose an outfit that was the perfect mix of flirty and professional.

The Vampire Diaries actress opted for a graphic print dress by Matthew Williamson, which emphasized her long legs and yoga toned waist.

Upping the cool factor just a bit, Nina paired the frock with cat-eye sunglasses and edgy platform ankle boots from Rupert Sanderson.

However, Nina wasn’t the first starlet to rock the Williamson number. Back in February, Olivia Palermo — socialite and former star of reality show The City — attended London Fashion Week in the black-and-white version of the dress.

Never one of shy away from glamour, Olivia accessorized her frock with sexy over-the-knee boots and a double-wrap belt.

While Nina’s look was young and fresh, Olivia went for sleek fashionista. Both ladies looked undoubtedly lovely, but which ensemble do you like best?

Credit: Young Hollywood Photo: Ian Somerhalder, Nina Dobrev, and Paul Wesley Get Cute at Comic-Con