Cara Delevingne refrained from pulling her signature kooky facial expressions and transformed herself into a bona fide Victoria's Secret model for the 2013 catwalk show. br While one might describe Cara as a prankster, a party girl or troublemaker among models, a super-sexy Victoria's Secret Angel doesn't immediately come to mind. Making her VS runway debut in 2012, Cara was trussed up like a candy striped doll. More cheerleader than lingerie model. br Yet this year Cara apparently took a dose of sass before hitting the runway. The young Brit pouted, snarled, bit her lip and ran her fingers through her hair while modelling a sheer black corset dress. Even her yellow Marigold-esque gloves didn't detract from her souped up facial expressions and glossy blonde locks.