J.LO WANTED BUMP BREAK

Jennifer Lopez thinks life would be ''perfect'' if your pregnancy bump was removable.

The 39-year-old actress – who has 17-month-old twins Max and Emme with husband Marc Anthony – is currently shooting new movie "The Back-Up Plan" in which she plays a pregnant woman, and loves being able to expand and retract her midriff girth as she pleases.

She joked: "A bunch of us who have babies, we're like, 'It would be great when you are pregnant. You could take it off five times during the pregnancy, only for a half hour. Then you have to put it back on.' "

"That would be awesome. It would be perfect. But you can't."

Jennifer – who plays Zoe, a woman who conceives using artificial insemination only to meet her perfect partner that very day – has loved making the film because she can take her children to work with her.

She explained to US TV show "Extra": "They've been with me almost every day on the set. I don't think they realize what I do."

"Once in awhile, they look at the monitor and go, ‘Mama'. They're just starting to talk."

"I put Max to bed yesterday and I said, 'I love you baby. I'll see you tomorrow.' And he was like, 'I love you.'"