She has managed to maintain her almost ageless appearance in part thanks to an extreme training regiment. And Jennifer Lopez did not hesitate at all on Friday when she shared with followers some hot ‘selfies’ from her gym in Miami, writes The 50-year-old showed off her fit figure and prominent muscles while working to stay in shape even during quarantine. She is going through a period of isolation with her fiancé Alex Rodriguez, 44, and their children. Jennifer was already shining from her selfie exercise in front of the mirror. She was wearing a pair of sports bras, through which she showed off her strong biceps.