Kate Bosworth donned a sexy Preen number to continue her duties as ambassador for the new SK-II skin care line at the Myer Sydney City store today. This marks Kate's second promotional appearance as the face of the luxury line, which also boasts Cate Blanchett as a spokesperson, while spending time Down Under. Yesterday, Kate posed alongside fiancé Michael Polish to celebrate the launch of SK-II at retailer David Jones. Kate and Michael arrived in Australia earlier this week, and although she has been busy with work, they've been able to squeeze in some relaxation. On Wednesday, Kate shared a picture of Bondi beach on Twitter.