Kim Zolciak Shows Off Her Bikini Bod in Amazing Flashback Pic! (PHOTO)

We’ve seen The Real Housewives of Atlanta’s Kim Zolciak show off her pregnant bikini bod before, but it’s not often that we’re treated to a skinny mini version of her photographed on the beach!

However, her daughter Brielle Instagrammed a special treat today: an adorable flashback pic featuring a girls’ day in the sand.

We’re not sure if they were vacationing or simply enjoying a day at the beach, but they all look gorgeous! Ariana, now 11, looks about 6 years old in this photo, meaning that Brielle was probably 10 at the time. And though that puts Kimmie at 29, we think she looks even younger — look at those toned muscles!

We think the girls look amazing, but what about you? Do you think they’ve changed a lot in the past five years? Sound off below!