Kim Zolciak Daughter: 'Don't Be Tardy' Star And Husband Worry Brielle Is Using Drugs

Kim Zolciak and her husband, Kroy Biermann, were concerned about their daughter's possible drug use on last night's Don't Be Tardy.

Although Zolciak was fairly convinced that her daughter was a good kid, Biermann worried that they may be in the dark about certain issues.

“Brielle’s a pretty good kid, I’ve been told by a lot of people. She’s never done drugs. She’s never had sex,” Zolciak told Biermann in a Don't Be Tardy clip posted online by Life & Style on July 31. Biermann's response? “I don’t know. The girl’s a brown-noser.”

Prior to meeting Biermann, Zolciak was a single parent to Ariana and Brielle, but once she and Biermann wed, things changed. Not only did Ariana and Brielle gain a step father, they also gained four siblings, Kroy Jagger, Kash Kade, and twins Kaia and Kane.

Still, despite the many changes life has brought in recent years, Zolciak isn't completely convinced that her 17-year-old daughter has gone off the deep end.

“I don’t think Brielle is brown-nosing me when she talks to me about this stuff. You think Brielle’s doing drugs?” she asked.

"I didn’t say that, but I don’t think she’s as perfect as you think she is," Biermann explained, adding that while he isn't sure what exactly she's been doing behind their backs, he “knows she is” up to no good.

For more of the Zolciak/Biermann family, tune into Don't Be Tardy every Thursday night at 9 p.m. on Bravo.