RadarOnline’s latest exclusive (so you know it’s gotta be legit) is that Jennifer Lopez’s 25-year-old boyfriend, and head choreographer of her current Dance Again World Tour, is gay and using the pop star for fame.

Joshua Lee Ayers, a dancer who has worked with Casper on several occasions in the past, including on the set of the film Step Up 3D, has turned to Twitter to expose his former colleague’s alleged past — and true intentions with J-Lo.

“Check out Ur boy… And his low key homo ways,” Joshua tweeted, along with a photo of Casper in gold shorts, with a bulge sticking out (he wishes!), surrounded by half-naked Adonises.

Let’s just stop right there. No way this photo reveals Casper is gay. No self-respecting homo in his right mind would combine gold lamé shorts, some hideously tacky belt, a silk scarf and a deer hunting hat . . . unless he lives in Vancouver, in which case his outfit is a major improvement from the shorts with white socks rolled up past their calves the men in this town wear all 12 months of the year.

“I know what I know,” Joshua added. “Not love, a lot of business and public relations.”

Way to describe 90 percent of Hollywood relationships, Josh.

“Casper is not gay,” Jennifer and Casper’s rep, Mark Young, told Radar. “These comments are born from envy and jealousy.”

Exactly. Rocky wants his shorts back, bitch!