Jennifer Lopez and Ben Affleck Celebrate Her Birthday in Chic Coordinating Ensembles

The pair stepped out for a late-night dinner on Sunday, pairing their black-and-white outfits with a festive balloon for the occasion.

Jennifer Lopez and Ben Affleck's Parisian tour continues! The newlyweds continue to take in the City of Light arm-in-arm, most recently with a late-night dinner celebration for Lopez's 53rd birthday on Sunday. 

The couple looked sleek in subtly coordinating black-and-white ensembles, Affleck in a black suit and white shirt, Lopez in a figure-hugging black dress and string of white pearls. The pair held hands, while Lopez also gripped a small clutch and a teal balloon on her other side. 

Bennifer dined at the popular seafood eatery Le Girafe, where they were treated to a prime view of the Eiffel Tower and, of course, a birthday cake for Lopez.

Around midnight, Lopez reportedly released her balloon into the night sky to float toward the tower. 

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Earlier that day, they were seen strolling near the Louvre Museum, Lopez in a flattering red halter dress and Affleck in a simple blue button-up. 

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On Monday, the pair appeared relaxed and casual as they exited Hotel Costes through a back door. Later, they made a pit stop at Sephora just after announcing Lopez's new JLo Body line.

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The duo's Paris vacation comes on the heels of their surprise wedding in Las Vegas, Nevada, earlier this month. And despite the timing, ET has learned that it's just a trip -- not a honeymoon. In fact, the whole excursion has been a family affair, with Lopez's 14-year-old twins, Emme and Max, and Affleck's daughters, Violet, 16, and Seraphina, 13, all spotted on a Seine River Cruise together over the weekend. 

Who needs a honeymoon when the new Mr. and Mrs. are clearly basking in their newlywed glow -- as evidenced by this sweet and intimate moment captured as they exited Hôtel de Crillon on July 23. 

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While it hasn't been long since the couple's surprise Las Vegas nuptials -- 20 years in the making, no less -- according to a source, "Jen and Ben are still planning to have a larger celebration soon with family and friends to celebrate their love in a bigger way." 

As for the destination of this party, another source told ET the couple is heading to the state of Georgia, where Affleck owns a home. 

"The newly married couple has kept their celebrating to a minimum as they plan to have a bigger gathering within the next few weeks," the source said. "Both have been married before and wanted to keep the marriage quiet and low-key before they plan to have a big celebration in Georgia."

For more on the couple's Vegas wedding and their plans for a bigger celebration, check out the video below.

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