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Kim Zolciak

Jamie McCarthy/Getty Images

Kim Zolciak-Biermann is not wasting any time when it comes to expanding her brood.

E! News confirms that the former Real Housewives of Atlanta star is expecting her fifth child, third with hubby Kroy Biermann, only nine months after giving birth to her son Kash.

"She's been trying to keep it quiet—she didn't realize she's showing as much as she is," a friend of the duo told In Touch Weekly, who first broke the story. "They didn't plan it, but they're thrilled."

The reality star's rep has not confirmed the news.

Zolciak, who is already a mom to Brielle, 16, Ariana, 11 (from previous relationships), K.J., 2, and 9-month-old Kash, admitted to the mag that "I think I'd like to have 10 more babies."

Something tells us she wasn't kidding.