Jennifer Lopez Hard-Core

2/23/2016 6:48 AM PST BY TMZ STAFF

0223-jlo-instagram-01Jennifer Lopez sweaty with no makeup after a cardio workout still looks hotter than most people do on a Friday night out.

J Lo's twins Max and Emme turned 8 on Monday so she was likely burning off the birthday cake or just firming up her best asset.

Her abs are definitely giving her ass a run for the money.

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