Article continues below advertisementHalle Berry is aging backward.The actress, 58, showed off her slim figure in a scandalous swimsuit while visiting Joshua Tree, Calif., on Sunday, July 20.Article continues below advertisementSource: @halleberry/InstagramHalle Berry stunned in a busty swimsuit.Berry exposed her cleavage in a black one-piece with white piping along the top of the bustier from Monday Swimwear. The back of the bathing suit featured a large cutout that exposed the star's back. She complemented her sultry ensemble with an oversized black straw hat that covered her eyes.