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Kim Zolciak kicked off daughter Ariana Biermann's birthday on Monday by threatening the birthday girl ... and it only got worse from there.
"I might still show up with cupcakes at school," she captioned a sweet Instagram slideshow of Ariana pics, "even though you are in high school!"
The "Don't Be Tardy" star did indeed show up to her daughter's school, but there were no sweet treats in sight.
Instead, the 38-year-old rolled up in an SUV which she had decorated with birthday messages for the 15-year-old. A clearly embarrassed Ariana rushed over to the car and covered her face as she tried to get in the vehicle--only to find the doors were locked.
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Once inside, she continued to cover her face as her mom and dad Kroy Biermann serenaded her over blaring birthday music.
"Leave!" she pleads with her parents, who are clearly enjoying her reaction. "Not funny!"
Zolciak, of course, caught the whole thing on video for her Instagram and Snapchat feeds.
Embarrassing her children via social media is nothing new for the reality TV show star, who just last week earned the wrath of of daughter Brielle Biermann for sharing a naked pic of Kroy on Snapchat.
And seeing as Kim has six kids, we're pretty sure we can expect plenty more embarrassing vids from the social media-loving mom!
