Lindsay Lohan sported a nude bikini top yesterday on the Austin set of Machete. Her sister Ali trailed right behind to keep LL company between takes. Lindsay's new movie has an interesting cast, and her costar Jessica Alba, who is currently shooting in LA, will be joining LL in Texas this weekend. In the meantime, tomorrow's your last day to enter Fab's contest for a chance to design leggings for Lindsay's 6126 collection, so don't forget to submit your ideas!