Jennifer Lopez Bikini + Casper Smart Shirtless = Hot!

Jennifer Lopez shows off her rockin’ hot bikini body while taking her 4-year-old twins – Max and Emme – to the pool at their hotel on Saturday (September 1) in Miami, Fla.

Jennifer‘s shirtless boyfriend Casper Smart was spotted dropping by!

PHOTOS: Check out the latest pics of Jennifer Lopez

Tonight is Jennifer‘s second consecutive night performing her Dance Again Tour at American Airlines Arena. Jennifer was looking fashionably chic in her outfits yesterday. Check them out if you haven’t already!

30+ pictures inside of bikini-clad Jennifer Lopez and shirtless Casper Smart…