Article continues below advertisementGabrielle Union and Dwyane Wade are bringing the heat to Miami.The Being Mary Jane star, 52, showed off her toned figure in a bold orange bikini during a sunny boat day with her husband. In one sultry Instagram snap, Union leaned in close while Wade rested his head on her hip, giving fans a peek at their playful PDA.Article continues below advertisementUnion's swimwear highlighted her curves, while Wade, 43, kept it cool in sunglasses and a light blue baseball cap, with his tattooed chest fully on display.