Kate Bosworth stuck close to fiancé Michael Polish's side during their latest NY Fashion Week outing to see the Theyskens' Theory Spring 2013 collection yesterday. Model Doutzen Kroes was also on hand for the presentation while designer Olivier Theyskens took time to pose with Kate as well. The couple, who recently got engaged, has been busy attending shows since the stylish fun kicked off last week. Kate's diamond ring has been on display as she makes the rounds, and she's also been sharing her own snaps from events. Lots of celebrities have been posting behind-the-scenes pictures from Fashion Week on Twitter and Instagram, and there's more to come as the front-row excitement continues until Sept. 13.