On Monday, the "Don't Be Tardy" star, Kim Zolciak announced that she gave birth to twins. The 35-year-old who is now the mother of six children welcomed her third and fourth child with husband Kroy Biermann.

According to Us Weekly, on November 25th the reality star wrote on her Instagram account, "We are officially the 'Biermann Bunch' now!"

Attached to the caption was a picture quote that read, "Guess what?!!! The twins have arrived! We welcomed first a baby girl and second a handsome little boy! They are both healthy and Kroy and I are so thankful!!"

The baby girl's name is Kaia Rose and the baby boy's name is Kane Ren after the star's OBGYN. [For the reason behind the newborns name click, HERE]

Kim Zolciak and Atlanta Falcons defensive end Kroy Biermann, 28, married in November 2011, and quickly welcomed sons KJ, 2, and Kash, 12 months into the world soon after.

The couple chose to keep the twins gender a surprise until their birth. One excited fan wrote that she hoped that the television personality would have two girls and the star decided to answer back on November 20th.

She tweeted, "I just want two healthy babies!"

She later added, "It's crazy 2 think I'll be delivering 2 babies!"

She went on to say, "What a miracle! We r so excited & so blessed 2 have the best OBGYN he has delivered 3 of mine!"

Prior to her delivery Zolciak posted a photo of her enormous bare baby bump at nine-months pregnant. On November 17th she wrote on Instagram, "Sooooo with all the request I finally decided to post My baby bump today!

"The twins will here this month and we are soooo excited and I'm soooo over being pregnant! #countingdownthedays."

The same day, the star tweeted, "Hubby just measured my belly OMG!!! 48 inches around!! And not ONE stretch mark!! I know stretch marks r genetics but I have some tricks!"

The Bravo reality star is also mom to daughters Brielle, 16, and Ariana, 12, from previous relationships. Back in July the NFL player confirmed that he officially adopted Brielle and Ariana.