The Fake Off judge tells PEOPLE that he and Lopez are "just being ourselves"

By Gabrielle Olya
Updated June 12, 2015 02:00 PM
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Credit: XactpiX/Splash New Online

Whether or not they’re officially back together is still unclear, but Jennifer Lopez and Beau Casper Smart are definitely enjoying each other’s company.

“We’re just having a good time, just being ourselves, that’s all,” the choreographer, 28, told PEOPLE.

Smart has recently taken his talents from behind the scenes to in front of the stage, appearing as a judge on Fake Off, a talent competition show featuring theater, acrobatics, aerial stunts and illusion.

“It’s very unique,” he says of truTV’s Wednesday night reality show. “It’s almost like a mini, 90-second awards show for amateurs. It’s nice to see what they come up with, how much they can do with what they have, and being able to help guide them a little bit.”

Off the show’s set, Smart and Lopez, 45, have been spotted together quite frequently recently, holding hands and even sharing a kiss.

While the creative director was tight-lipped about their romantic status, Smart wasn’t shy about gushing about Lopez’s work ethic.

“She’s one of the hardest-working people I’ve ever seen or met in my life,” says Smart, who recently choreographed Lopez’s sexy music video with Prince Royce for “Back It Up.” “She crushes everything that you give to her, and she knows what she wants. She’s just great.”

RELATED: Casper Smart Spills a Secret About J. Lo

The on-and-off couple have always remained close despite ending their relationship last summer, and the actress recently told Ellen that she’s only “kind of” single.

For more on Smart and Lopez, pick up the latest issue of PEOPLE, on newsstands now