Jennifer Lopez at 40: Her Life With Her Twins

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Perfect Pair

After gaining 50 pounds of pregnancy weight with her twins, "I thought it was gonna drop off easily because I had been in shape my whole life," the actress has said. "But it wasn't. The first 30 dropped off like that, and I was like, 'Ha, this is gonna be so easy.' That last 20 -- that took a while."

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Boys Club

"I am on top of the world right now," Anthony said six months after their birth. "Everything is so much more fulfilling and I love coming home to them."

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Mommy & Me

"They're very in-tune with each other. They're walking, they're talking, they're babbling a lot -- all that kind of stuff. It's wonderful to watch!" the proud mom told Us in April 2009.

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Lights, Camera, Action

"I bring the babies to work with me," Lopez -- who is currently shooting The Backup Plan in New York City -- has said. "I was like, 'Oh my God, they're with me, I'm making a movie, they're here!' It's great having kids on set."

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On the Move

Max "is more like the visceral boy -- running, knocking things down, eating the world," Lopez has said of her son, adding that he is also like his self-described "tomboy" mother.

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Giving 'Tude!

"Emme has her moments. She's funny because we call her Emme-tude. We're like, 'She's giving us Emme-tude!'" Lopez has said. "She gets that from her dad. I'm kidding -- she gets it from me!"

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Just Like Dad

"Max is like Marc. He's got Marc's lungs, and he screams and he's strong" Lopez said in October 2008. "Emme's very delicate and quiet, but you can't mess with her!"

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Summer on Set

Talk about a summer vacation! Lopez has brought her kids to the New York City set nearly every day during the filming of The Backup Plan.. "Once in awhile, they look at the monitor and go, 'Mama.' They're just starting to talk."