Would this dress make my hips look bigger?? and would it look nice with a denim jacket?

http://www.asos.com/Asos/Asos-Open-Back-Drape-Dress/Prod/pgeproduct.aspx?iid=1512759&SearchQuery=asos%20open%20back%20drape%20dress&sh=0&pge=0&pgesize=20&sort=-1&clr=Brown