Jennifer Lopez, 43, stepped out in style this week in Paris, when she took her boyfriend of one year, Casper Smart, 25, to his first Paris Fashion Week.

And Smart, who was one of Lopez's backup dancers when he took a liking to her following her divorce from fellow performer and hubby of seven years Marc Anthony, wasn't the only newcomer to hit the exclusive Fashion Week events. The happy couple brought out Lopez's daughter Emme Maribel Muniz, 4, who got dressed up in a pink dress and white cardigan for the festivities, writes Zap2it.

Smart is reportedly wild about Emme and Max, Lopez's twins with Anthony, and recently stopped by an Xbox 360 event in Los Angeles to procure some games for the youngsters, reports Us Weekly.

"He was going on about how he loves playing with them," said a source for the magazine. And the same goes for his ladylove Lopez. "He's madly in love with her," said the insider.

While former American Idol judge Lopez and dancer Smart have suffered some criticism about their 18-year age difference, Lopez shrugs it off. "Until somebody brings it up, I don't think we really think about it," J.Lo revealed. "We're just two people who have similar interests and love a lot of the same things and who get along."

Smart and Lopez will pair up again onstage for the European leg of Lopez's tour this month.

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