Kim Zolciak’s 18-Year-Old Daughter Brielle Biermann Bares Her Butt in Sexy Bikini – See the Pic

Kendall Jenner

Apparently she's too cool for captions…

Rihanna

What more do you need than a ""?!

Britney Spears

"Just chilling."

Bella Hadid

"joj caught me in my happiest moment."

Selena Gomez

"I love being happy with me yall #theresmoretolove "

Karrueche Tran

"Vitamin D #ittybittycommittee."

Brielle Biermann

The 18-year-old isn't shy about her baring her butt on Instagram.

Kourtney Kardashian

"Troop Beverly Hills."

Tallulah Willis (with mom Demi Moore and sister Scout)

"when you can't be with the papa…. #freeslw #POOLPARTY #mymomsbodtho"

Bethenny Frankel

We HAVE to point out that wonky left pinky toe!

"On tonight's episode, @caroleradziwill tells me I need to find balance. How's this? #RHONY"

Naomi Campbell

"#Sunday #Rest"

Emily Ratajkowski

"sunday."

LeAnn Rimes

"JUMP FOR JOY #summer @bettinis_swimwear #silliness."

Lucy Hale

The Pretty Little Liars star and her boyfriend definitely know how to have fun in the sun!

Molly Simms

"Splish Splash .. We came.. We saw.. We did everything #exhausted #familytime."

Alessandra Ambrosio

"Mykonos blues #paradise #lovethisisland #foreveronvacation #psaroubeach"

Padma Lakshmi

"'Maawm, it's so hot and bright!!!' 'Um, yup we're in India' #lastdip #littlehands"

Padma Lakshmi (AGAIN!)

"The only benefit of gaining weight is what it does to your boobs! #idliboobs."

Kelly Brook

The brunette babe knows how to flaunt her curves in "St Barths "

Lisa Rinna

Lisa says "Bye bye jet skis"

Jennifer Lawrence and Amy Schumer

The unexpected buds gave us all #friendgoals with this photo

Snooki

"Beach time."

Lady Gaga

"A day of alignment and relaxation."

"It took over 2 years after my surgery to be able to correct my alignment and continue working. I am so grateful that it's returning and so thankful to my manager and everyone around me for helping me to feel like myself again."

Lady Gaga again…

"Work hard, play hard. Work hard again, play harder."

And another Lady Gaga!

"I take a Bahama mama."

Gabrielle Union

"Ain't No Worries… photo cred @lala ♡♡♡"

Jessica Lowndes

"Suns out, buns out ️ #SoCal #Sundayfunday."

Kaley Cuoco

"Yep. Leave it to me to find a swim-suit pant "

Paulina Gretzky

"Lounging."

Scout Willis

"I finally left the house!!!"

Tallulah Willis

"Leisurely plotting the demise of my enemies."

And another of Bella Hadid because, well, we're not sure what's happening here!

Giuliana Rancic

"On top of the world."

Whitney Port

"This weekend was fun, right?!?"

Doutzen Kroes

"Behind the scenes TVC @lorealparisofficial #pierrecardin #cannes #cannes2015."

Miranda Kerr

"A big thank you for all the birthday wishes!!! xxx"

Kim Zolciak-Biermann

"Love my new suit my 6 kiddos got me for Mothers Day! I have been so spoiled today…Happy Mothers Day to all the mommies out there! #PoolTime #TriedToGetHubbyWalkingInTheBackgroundShirtless"

Rumer Willis

"DWTS figure #smoking and a little of #FreeSLW bottom "

Irina Shayk

"When your donkey is done and over your selfies.."

Serena Williams

No caption needed!

Ariel Winter

"hehe #springbreak #mylove"

Toya Wright

"Hit the beach in Turks today rocking my @triveraonline swimsuit. Had to support my boo @charliesangelll"

Heidi Klum

"Good Morning sunshine!"