Jennifer Lopez showed off her figure in a form-fitting one-piece bathing suit on the set of a photo shoot in Miami on Friday. She is out promoting the latest season of American Idol , which premiered earlier this month, and for this work-related trip she brought along her boyfriend Casper Smart. Idol may be off to a slower start in its 11th year on air, but things are going well in Jennifer’s personal life. Casper defended his and J Lo’s age difference recently, saying “close your ears and open your heart!” She’s also getting along well with her ex, Marc Anthony , despite rumors of trouble when they split last Summer and when she took up with her much younger backup dancer. Jennifer and Marc even held hands at a recent event to promote their upcoming reality show Que Viva to show just how friendly they are as exes. View Slideshow ›

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Jennifer Lopez Slips Into a Swimsuit and Snuggles With Casper