Brielle Biermann Doesn’t Want Mom Kim Zolciak to Have a 7th Baby

Five siblings is plenty for Brielle Biermann . The 21-year-old is hoping her mother, Kim Zolciak , is done having kids.

“I think if she got pregnant again, I’d be like, ‘Are you OK? Are you insane?’” Brielle exclusively told Us Weekly at Rolling Stone LIVE: Atlanta’s Big Game Bash presented by Mercedes-Benz USA in Atlanta on Saturday, February 2.

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Brielle and sister Ariana, 17, are Zolciak’s daughters from the Real Housewives of Atlanta alum’s prior relationships, and they took stepfather Kroy Biermann ’s last name when the former NFL star adopted them in 2013. Zolciak and Kroy, who married in 2011, have four children together: Kroy Jr., 7, Kash, 6, and 5-year-old twins Kaia and Kane.

The reality star explained her rationale on Saturday, telling Us that if Zolciak had a seventh kid, she’d want an eighth: “She’s always like, ‘No odd numbers, we have to have [an] even [number].’ So obviously, there would be an eighth coming — we’re not going to have 7 — so this isn’t the end of it, and she’s almost 41!”

“Don’t have any more kids,” she added, sending a directive her mom’s way. “We’re jam-packed as it is!”

She also told Us about the emotional revelation that Kim was expecting twins in 2013. “She drove us to the end of our neighborhood and said, ‘I’m pregnant.’ And me and my sister were like, ‘OK,’” Brielle recalled. “And she said, ‘With twins’, and we just started bawling and losing our minds.”

While fans wait to see if there will be a seventh kid in the mix, they can at least look forward to the seventh season of Don’t Be Tardy , the Zolciak-Biermann family’s Bravo reality show.

“I’m really excited to kind of unveil what’s going on in our lives now,” Brielle told Us on Saturday. “It’s really different from any other season. There’s been a lot of drama and chaos going on in the past few seasons, but this season is more heartfelt and loving. You’ll see [some] trials and tribulations between my family and [me] especially, and my sister is going to prom, and she’s growing up, and she’s becoming a woman. My siblings, everyone is just growing up and fleeing the nest, so it’s really exciting to see it.”

Don’t Be Tardy season 7 premieres on Bravo on Sunday, February 17, at 9 p.m. ET.

With reporting by Emily L. Foley