Popsugar Fashion Oscars Sexiest Dresses at Oscars 2015 25 Looks From Last Year's Oscars That Practically Reinvented the Word Sexy February 26, 2016 by Aemilia Madden View On One Page Photo 1 of 25 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 1 Rosie Huntington-Whiteley Rosie Huntington-Whiteley looked ferocious in a slinky, sparkling Alexandre Vauthier dress with side cutouts at the Vanity Fair afterparty. Previous Next Start Slideshow Red CarpetAll AnglesAward SeasonOscars