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Actress Gabrielle Union has still got it going on -- at 40. Dwyane Wade’s girlfriend of three years posted bikini photos on Instagram earlier this week, showing off a slim and toned body.[[nid:1441730]]

Her photo captions read, “Just smile ... Kills em everytime #ItsNeverThatSerious #40.” Union, who turns 41 on Oct. 29, looked the age of her NBA-player boyfriend, who is 31.

She's just one of many Hollywood actresses getting hotter with age. Jada Pinkett-Smith has two tween-aged children, but she  still manages to maintain her incredible physique. Last year, she uploaded a sexy picture of herself on Twitter, wearing a bikini that proved she's still got it.

Along with her bikini photo, Pinkett-Smith tweeted an inspirational message: "To my Forty and over crew! Don't believe the hype...we DO get better with age!"

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Jennifer Lopez, 43, is also known for her fit and curvy figure, and Halle Berry is still a show-stopper at 43, in addition to Catherine Zeta-Jones and Salma Hayek, both in their 40s.

Meanwhile, Dwyane Wade and the Miami Heat are currently trying to become NBA champions for the second year in a row. The Heat defeated Okhlahoma City Thunder in five games to win the world championship in June, making this their second NBA title. They defeated the Dallas Mavericks 4-2 in 2006.