Jennifer Lopez, 57, flaunts cleavage in plunging bodysuit as she tucks into choc-chip cookies after her gym session: 'Balance'

Jennifer Lopez tantalized her 239 million Instagram followers on Friday as she shared a series of sweaty post-workout photos.

The 57-year-old veteran entertainer teased her pert cleavage in a low-cut, skintight brown bodysuit.

She teamed the sexy gym look with white socks and sneakers as she showed off her figure in a set of mirror selfies.

Lopez's visage was fully made up in soft, dewy cosmetics as she admired her reflection across four snapshots.

And the fitness enthusiast revealed what indulgent snack she turns to after a sweat session – chocolate chip cookies.

She shared a photo of two cookies and a glass of milk, writing in the caption, 'Workout & eat cookies. Balance.'

Earlier this week, Lopez promoted her upcoming concert movie The JLO Show: Live in Las Vegas by posting a teaser of what's to come.

Taking to social media, she shared a trailer featuring her hottest moments on stage during her Sin City residency earlier this year.

'We're 2 weeks away from THE JLO SHOW Thanksgiving night on CBS & Paramount+,' she told her followers in a caption.

'I'd like to tell a little story with this show and pay homage to all the entertainers who graced this stage before me,' she says in the clip.

The Bronx native says in another snippet, 'I'm gonna let you in on a little secret tonight. There [have] been times in my life I had to sing sad, and there [have] been times when I sang happy. Now I sing empowered.'

She then triumphantly tells the audience that 'no matter what life throws at you, you dance and dance again and again and again.'

Lopez's last set of Las Vegas shows took place throughout the month of March. 

According to a source who spoke with the Daily Mail, she worked nonstop to prepare for the undertaking. 

'Jennifer is rehearsing night and day to make sure the show is spectacular, better than ever,' the insider shared.

'She is working 13-hour days at a studio in North Hollywood with her back-up dancers to make certain she looks like she is on top of her game. She always says she wants to be 'better than yesterday' – it's her thing.'

Another reason she put so much energy into the shows was because she wanted her act to be considered one of the top draws in Las Vegas.

'Everyone is going to the Sphere these days, that is the town's big deal, so she wants to prove that a more old-fashioned concert at the Colosseum is still the place to be,' added the insider.

She also wanted to remind fans that even though she is well into her fifties, she is still in her prime.

'Jennifer loves to work, she never complains, it's her jam,' said the source. 'Some people like to vacation on the beach in Hawaii, and some like to work nonstop. Jennifer is the latter. She feels proud to be doing so well at her age and as a Latina woman.'