"Don't Be Tardy" Alum Ariana Biermann 21st Birthday Cake Featured His Dui Mugshot

The "Don't Be Tardy” alum celebrated her birthday on Monday, Oct. 17. Her cake was decorated with her mugshot. Ariana's boyfriend

Well, we're finally 21. Happy birthday, you guys," Ariana's older sister, 25-year-old Brielle Biermann, said in an Instagram Story video that showed off the dueling sheet cakes

Hudson and Ariana were both twenty-years old at the time of the incident.

Ariana told that I could detect the odor of an alcohol beverage on her breath. The odor could have been from her clothes," she stated to a police officer.

Us Weekly reported that Ariana refused to undergo a Breathalizer test.

Ariana was charged with impairment by alcohol by the officer who arrested her, according to his police report. She denies all allegations and plans to fight the charges, as she is innocent of them.

Kim claimed that her daughter did nothing wrong, and blamed the police.