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 21 of 25 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 21 Karlie Kloss Karlie Kloss donned an edgy black dress with a sheer bottom at the Vanity Fair afterparty. Previous Next Start Slideshow Red CarpetAll AnglesAward SeasonOscars