Jennifer Lopez was joined by boyfriend Casper Smart on a visit to a jewelry store near her Calabasas, CA, home yesterday. The pair was careful not be photographed together and exited the boutique separately before hopping into Casper's new Bentley, allegedly given to him by Jennifer. Jennifer ran her last-minute holiday errands dressed in a fur-lined jacket and Gucci accessories — however, on Saturday, she modeled her Spring 2012 Kohl's collection designs and posed for photographer Tony Duran for an upcoming print campaign. Despite her hectic schedule, Casper's making an effort to see J Lo whenever she has a break from the cameras. Casper visited her on the set of American Idol and also traveled with her to Morocco and Hawaii late last month. Jen's schedule isn't slowing down in the upcoming months with Idol returning to TV on Jan. 18 and her next film, What to Expect When You're Expecting, slated for a May release.