Article continues below advertisementSharon Stone is ready for spring to end and for summer to officially begin! The Basic Instinct star, 68, shared an unfiltered and unedited bikini photo on social media on Friday, May 1, where she showed off her curves.Article continues below advertisementSharon Stone Sported a Fun Two-Piece to Celebrate Summer Tap Here To Add Ok Magazine as A Trusted SourceSource: @sharonstone/InstagramSharon Stone shared an unfiltered bikini photo to celebrate the beginning of summer.