This skimpy G-string is not your mother’s thong … unless you’re Brielle Biermann, that is.
The “Don’t Be Tardy” star, 24, posted a cheeky beach photo on Thursday, modeling her mom Kim Zolciak’s black bedazzled thong.
“My mom bought it first but i wore it first,” she captioned the sexy shot.
Biermann faced towards the beach for the racy snap, showing off the sparkly, shared bikini bottoms.
Her mom, 43, responded to the photo with eye rolling and laughing face emojis, writing, “so mad you posted it first,” before adding, “I bought it for us both crazy.”
Followers, including Brielle’s 19-year-old sister Ariana Biermann, dropped heart-eye and fire emojis in the comments, while one fan wrote, “the genetics in this family are unreal.”
Others were less focused on their shared genes and more focused on their shared thong, with one commenter wondering, “Are we just gonna ignore the fact that they share thongs.”
“You share G Strings?” another asked, racking up 163 likes, while a third added, “Never knew ppl shared thongs….”
The mother daughter duo’s black G-string is similar to the then-21-year-old vintage Gucci thong Kim Kardashian famously modeled back in 2018 — although it’s unclear whether she shared the style with members of her famous family.
During a 2018 game of “Love It or Weave it,” Brielle and Kim even told Page Six Style that they both “love” belfies, or butt selfies.
Perhaps the family that belfies together, stays together.