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Kim Zolciak-Biermann is quite confident with her curves.

"I have the best boob job ever," the Don't Be Tardy star told E! News recently. She went on to describe her famous assets as "pretty perfect," adding, "Everybody's happy with 'em!"

This 37-year-old mother of six regularly flaunts her bikini-clad bod on social media, and with this comes a lot of unsolicited, nasty commentary from online trolls. Kim often fires back at her critics, and while she doesn't enjoy being the target of body-shaming bullies, she doesn't really let it get to her.

But when you take on Kim's daughter Ariana Biermann? That's when those mama bear claws come out! "One comment on social media just affects a 14-year-old," Kim explained. "It really makes me very angry. It's very sad. I really can't wrap my head around the fact that somebody can sit behind a computer and write something negative. Like what is going through your mind when you write that? It's insane to me."

Earlier this month, Kim defended her "sweet, smart, motivated princess" in a heated Instagram rant. She slammed the "LOW LIFE a--holes" bullying her daughter, adding passionately, "You leave my baby alone she is a child!!!!"

Kim's oldest daughter, 18-year-old Brielle Biermann, has had to face off with her fair share of bullies, too. "People would say rude comments to her [when she was younger], but social media wasn't so big when she started on like Real Housewives [of Atlanta] many, many years ago," Kim told E! News. "Now, it's become huge, so Ariana's getting the brunt of it [online bullying] at 14."

So what is Kim doing to empower Ariana, and what would she like to say to those targeting her child online? Watch the clips above to find out!

Don't Be Tardy season 4 premieres Aug. 16 on Bravo.

(E! and Bravo are both part of the NBCUniversal family.)