Muy caliente!

Hours before she performed at the American Airlines Arena in Miami, Florida, September 1, Jennifer Lopez, 43, sneaked in some pool time at a local hotel with her twins, Max and Emme, 4, and her boyfriend of nearly a year, backup dancer Casper Smart, 25.

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Wearing a black bikini that featured an asymmetrical strap around her right shoulder, Lopez showed off her enviable abs and world famous booty. The "Dance Again" singer also sported retro-inspired sunglasses, gold hoop earrings and a Hermes cuff.

After taking a dip with her twins, Lopez spent some quality time frolicking in the pool with Smart. At one point, the former American Idol judge wrapped her legs around the choreographer as he waded in the water and soaked up the sun.

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Lopez recently turned to celebrity fitness guru Tracy Anderson to keep her in shape while touring with Enrique Iglesias. When the entertainer is pressed for time, "We skip dance cardio, since she's always rehearsing, and do legs and arms," Anderson told Us Weekly earlier this year.

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During her trainer's rigorous workouts, Lopez depends on high-energy tunes to keep her motivated. "She's dedicated!" Anderson raved.

This article originally appeared on Bikini-Clad Jennifer Lopez Flaunts Tight Abs, Swims With Casper Smart