By Breaking Celebrity News Staff

It’s barely been a year since Jennifer Lopez wildly gyrated with husband Marc Anthony during the American Idol finale, but she’s already at it again… with her new boy toy.

Thursday night, the 42-year-old invited millions to witness the chemistry she shares with Casper Smart, 25, during a performance of her latest single, Dance Again.

J-Lo fans will already know that the video for the upbeat tune features the couple getting hot and heavy, and the lyrics profess the mother-of-two’s love for Casper.

Nevertheless, few were expecting the judge to hijack the search for young talent to flaunt her relationship, again.

But, after taking the stage in a sequin covered bodice and a pair of black tights, Lopez headed a dance ensemble before Casper pulled away from the rest of the backing troupe to perform alone with the superstar.

They then engaged in an x-rated paso doble, which saw Casper grab his girlfriend’s buttocks as they twisted and turned around each other in paroxysms of ecstasy.