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Kim Zolciak

lockerz.com

Kim Zolciak-Biermann is no stranger to drama.

But now it's the Real Housewives of Atlanta star's own mother who is stirring things up. On Tuesday, Karen Zolciak filed a petition in Georgia's Fulton County Superior Court against Kim asking for visitation of her grandchildren Ariana, 9, and Brielle, 15.

According to the documents obtained by E! News, Karen, 55, claims she "spent time with the girls on a regular basis since they were born," and says the sisters "have spent a lot of time at our house cooking, baking, doing crafts, having sleepovers, playing with our dogs, making hot fudge sundaes, eating 'poppy' burgers."

Karen says that "before Kroy [Biermann, Kim's husband since November 2011] came into Kim's life, we spent a Christmas in the Bahamas with them," and says Ariana and Brielle "live such a crappy, abnormal life being on TV—they need a normal haven to relax and unwind and just be kids."

She adds that the children "usually don't want to leave when they come over because it's so calm and comfortable at our house," but that Kim "won't let them come over."

"Bravo TV needed drama for Kim's show Don't Be Tardy for the Wedding," she adds. "They portrayed me as a bad person." (During the special, Kim was shown kicking her mother out of her wedding after she threatened to burn her house down.) E! and Bravo are part of the NBCUniversal family.

Kim, 34, and her husband, a 26-year-old Atlanta Falcons football player, are parents to Kroy Jr., 15 months old, and Kash, who was just born on Aug. 15.