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Teen Choice Awards 2012 backstage: 'Twilight,' 'Vampire Diaries' stars, Tia and pregnant twin sister Tamera Mowry

<div class="meta image-caption"><div class="origin-logo origin-image "><span></span></div><span class="caption-text">&#39;Twilight&#39; star Jackson Rathbone appears at Backstage Creations&#39; Celebrity Retreat at the 2012 Teen Choice awards at the Gibson Amphitheatre in Universal City, California, near Los Angeles on July 22, 2012. (Angela Weiss &#47; WireImage)</span></div>
July 23, 2012 12:00:00 AM PDT