That J.Lo booty doesn't come easy!
Jennifer Lopez showed off her workout routine on Instagram Stories on Friday -- and it's no walk in the park.
RELATED: Jennifer Lopez Bikes Around NYC With Alex Rodriguez: 'There's No Place Like Home'
The 48-year-old actress pumped some iron before lunging across the gym.
RELATED: Jennifer Lopez and Alex Rodriguez Pose Next To 'Love' Sign, Put Top Down While Cruising Around NYC
Missing from Friday's workout was Lopez's favorite exercise partner, boyfriend Alex Rodriguez, who recently opened up about their relationship in an interview with The Hollywood Reporter.
"We both appreciate where we are in our lives," he said. "We appreciate being parents, and we're so similar; we're both kind of workaholics."
See more in the video below.