Hilaria Baldwin attends the 2016 Fragrance Foundation Awards Credit: Michael Stewart/WireImage

This new mom won't stand for the hate. Hilaria Baldwin, who welcomed newborn son Leonardo earlier this month, responded to postbaby body shamers with a sexy, cleavage-baring new photo Friday, September 23.

The 32-year-old yoga instructor — who is also mom of daughter Carmen, 3, and son Rafael, 15 months, with husband Alec Baldwin — took to Instagram with a close-up shot of her ample assets in a black lace bra while cuddling alongside her adorable baby boy, who was born September 12.

"... and the after party begins," she captioned the sweet shot of Leonardo sucking on a pacifier while wrapped up in white bedsheets.

...and the after party begins....🐮🌙🍼

A photo posted by Hilaria Thomas Baldwin (@hilariabaldwin) on

Earlier in the day, Hilaria shared a video of herself stretching outside before a workout. In the clip, which was set to Prince's "Kiss," the fit mom of three looked toned in a navy tank top and neon-green and blue gym shorts. "Pre-run stretch!! Sound up!!!" she wrote.

Some fans weren't thrilled about the video, commenting that the "Super Mom" should "take a few months' break" to spend time with her little one. Shortly after, Hilaria shared a lengthy note via Instagram to hit back at the haters.

"Every body is different. Every pregnancy is different. My pregnancy, birth and recovery is between ME AND MY DOCTOR. As yours should be," she wrote Friday. "This is my third baby ... so obviously I've done this before. Fitness is my job ... which means my body is accustomed to working out. I ran through much of my pregnancy and worked out throughout the entirety of it. I take these videos and show you these health tips simply as a window into what I do so I can help you in any health journey you are embarking on."

Hilaria continued, "These exercises I post are not necessarily geared towards getting in shape post baby. These are exercises for anyone who feels they are appropriate for them. So please: stop with the negativity about me just having a baby. I don't want to sit down, lay down and do nothing. That's not what my body is telling me it wants and needs. If this negativity has been your way of caring: thank you. But I promise I'm fine."

Pre-run stretch!! Sound up!!! 💜💛💜💛 #366daysoflivingclearly #hilarialcm

A video posted by Hilaria Thomas Baldwin (@hilariabaldwin) on

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