Jennifer Lopez: Marc Cried When He Learned About The Twins

Now that she's back to work movie star mom Jennifer Lopez reveals that she's dealing with some separation anxiety in her 2-year-old twins Max and Emme.

"They're at the point now where they've come to the door and started yelling, 'No, no, Mommy, don't go!' And I was like, 'Whoa, this is bad,'" the star of The Back-Up Plan tells US. "That's really tough. So I'm just going to have to figure it out as I go along. I keep trying to explain to them, 'I'll be home and the sun will still be out!'"

Though it was a few years ago now, Jennifer still clearly remembers the day when she found out that she was expecting not one bundle of joy, but two!

"Well, I was in denial that I was even pregnant at first, so when I found out I was having twins, I just kind of laughed like, 'Of course this would happen! And then I started giggling."

As for her hubby Marc Anthony, who also has daughter Arianna, 15, and sons Cristian, 9, and Ryan, 6, from previous relationships, Jennifer says he was happily overwhelmed by the news.

"Marc started crying. It was a joyous time. We were happy... He's emotional! He just couldn't believe it was happening. He'd had children before and this was like a whole new, special experience."