Jennifer Lopez and Mark Anthony, along with is she or isn’t she pregnant Kate Moss and Emma Roberts celebrated the launch of TopShop at The Box in New York last night.  Jennifer explained what she loves about TopShop:

“I love that you can get a lot of stuff there and it’s really inexpensive and great, and they concentrate on making really cool stuff — really cutting edge.”

When asked by OK! how she manages to look so young, the almost 40 mother of twins says:

“Happiness,” “And sleep!”

The twins are keeping her busy though:

“They’re walking, they’re talking — babbling a lot,” 

When asked if they planned on having more kids, Mark responded with:  “I hope so!”. 

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Photos:   WENN.com