Like mother, like daughter.

Kim Zolciak is no stranger to baring her butt on social media, and now her 18-year-old daughter Brielle Biermann is following suit.

The Don't Be Tardy star recently posted a photo of herself on Instagram in a barely-there bikini that shows off most of her booty.

RELATED: Kim Zolciak Flaunts Size 4 Post-Baby Body 9 Days After Giving Birth to Twins – See the Pic

Too revealing for a teenager? Apparently not in Hollywood!

Click through the gallery to see more celebrity bikini pics.