Hot mama! On Thursday, February 25, Teen Mom 2’s Kailyn Lowry shared the secret behind her svelte physique. The reality star took to Instagram to reveal that she straps herself into a waist trainer for four to six hours at a time.

“Summer body almost ready,” Lowry, 23, captioned her 'gram. “Losing more inches off my waist by eating healthy & waist training w/@Colombianwaist. I wear it 4-6 hrs & it's very comfortable.”

In the bathroom selfie, Lowry looks thinner than ever in a hot pink version of the waist-whittling garment. The MTV personality also encouraged other mothers who might still be fighting off pregnancy pounds to give her slimming trick a try.

“I recommend it to all Moms that [are] trying to get that pre baby body back or for anyone who wants a smaller waist,” she added.

As Us Weekly previously reported, Lowry underwent extensive plastic surgery in January to help transform her body. While the mom of Isaac, 6, and Lincoln, 2, credits waist-training for maintaining a slender frame, she also does CrossFit and takes jiujitsu classes to stay fit. 

In April 2015, Lowry proved she was well on her way to successfully shedding the baby weight. “HAPPY HUMPDAY. 20 lbs to go!” she wrote on Instagram, posting an inspirational before-and-after photo. “Left was today, right was taken June 2014.”

At the time, Lowry’s husband, Javi Marroquin, tweeted his admiration for his wife’s impressive slim down. “Needed to remind you again of how proud I am for all the hard work you've put in!” he gushed. “I know this journey has been rough, but you haven't given up. I am so proud of you! Love you @kaillowry.”

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