Kendra Wilkinson proudly shows off stretch marks

Kendra Wilkinson is keeping it real.

The 30-year-old former Playboy model shared a close-up shot of her stomach with her Instagram followers on Sunday, candidly showing how her body has changed since giving birth.

"Look what my 2 babies did... They made me happy," Wilkinson sweetly captioned the snap, which prominently features her stretch marks. "#happymothersday."

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Wilkinson married former NFL star Hank Baskett in 2009, and the couple share two children together -- 6-year-old Hank IV and 1-year-old Alijah.

And although her latest snapshot might be proudly showing off her imperfections, the "Kendra on Top" star has definitely been working hard on her post-baby bod since last giving birth in May 2014. Check out Wilkinson highlighting her petite figure in a pair of white skinny jeans and a sleeveless denim shirt just last month.

She's made it no secret that fitness has been a priority to get her famous body back, going on challenging hikes and hitting the gym.

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On last week's episode of "Kendra on Top," the reality star made headlines thanks to an awkward reunion with her former "Girls Next Door" co-star, Bridget Marquardt. Marquardt confronted Wilkinson about past comments that the two were never really friends.