Kim Zolciak claimed her daughter Brielle was grounded after Snapchatting a picture of her butt. Credit: Taylor Hill/FilmMagic; Wilford Harewood/Bravo/NBCU Photo Bank (inset)

Busted! Kim Zolciak laid down the law with her oldest daughter Brielle, 17, on Wednesday, Jan. 7. The Don’t Be Tardy star, 36, took to Instagram to share a screen grab of a recent Snapchat Brielle sent. 

“Sooooo I'm in MY bathroom trying on some clothes I just got talking with my sweet beautiful @briellebiermann and all the while she is taking pics and posting on SnapChat! THIS IS ONE OF THE PICS SHE POSTED! So my sweet Brielle is now grounded (she just got ungrounded last week) and now has no phone for a week! #IDontHaveSnapChatSheThoughtIWouldNeverFindOut #IFindOutEverything #IDidLaughThough #SocialMediaStressesMeOut,”she captioned the photo. 

The image features Zolciak’s curvy backside in a fitted polka dotted jumpsuit with the tag: “when ur moms ass is fatter than urs.” 

Clearly, Zolciak had no problem with the actual photo, which showed off her perfect hourglass shape, but the strict mother of six wasn’t pleased with her daughter’s caption. 

Though Zolciak seemed serious about her punishment, Brielle proved her mom didn’t mean it. In fact, she posted a screen grab of her mother’s Instagram, adding, “my phone is in my hand rn….” 

Prior to her mother’s empty threats, Brielle tweeted, “shoutout to the pervs who screenshotted the snapchat of my mom:-)))) ur lucky I can't see who u r... smh. CAN YALL STOP ADDING ME ON SNAPCHAT I'm sorry j don't add fans on there to see my personal life. j literally snapchat everything I do.”