Jennifer Lopez enjoyed a romantic holiday weekend with her boyfriend, Casper Smart, in Miami Beach. People magazine reports the couple hit up a club on Thursday, where a source says "they were very sexy with each other, dancing and bouncing around and making out."

The following day, Lopez, her beau and her three-year-old twins set sail aboard a friend's yacht. Lopez went shopping Saturday before she and Smart celebrated New Year's Eve with a group of friends.

The 42-year-old J-Lo has been romantically linked to the 24-year-old Smart for a few months. She split from estranged husband Marc Anthony over the summer.

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