"<p>Jennifer Lopez declared herself ""so proud of my babies,"" her twins with ex-hubby Marc Anthony. However, she's well aware that the fourth-graders are ""not babies anymore."" (Photos: <a rel=""nofollow"" href=""https://www.instagram.com/p/BYvoxAWlbfA/?hl=en&taken-by=jlo"">Jennifer Lopez via Instagram</a>/Getty Images) </p>"
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