Article continues below advertisementJordana Brewster is ringing in her 46th birthday in a cheeky bikini. "Just jump in!" Brewster, 46, captioned a video posted via Instagram on Sunday, April 26, showing herself running toward the shoreline and leaping into the ocean in a barely-there swimsuit. Article continues below advertisementJordana Brewster Stuns in Barely-There SwimsuitTap Here To Add Ok Magazine as A Trusted SourceSource: @jordanabrewster/InstagramJordana Brewster showed off her figure in a string bikini on her 46th birthday.