Kim Zolciak's oldest child, teen Brielle Zolciak shared an intimate moment with her younger brother, Kroy Jagger Biermann, on Twitter on Sunday.

The teen reality star captioned the picture of her baby brother sticking his tongue out: "this is my best friend."

Brielle was wearing a formal blue dress with a beaded neckline, sheer inset and tulle overlay.

According to Us Weekly, Brielle was all dressed up for her high school's homecoming dance. She accented the look with a braided hairstyle and cowboy boots.

Kim, who is pregnant for the fifth time and expecting twins next month, revealed that KJ is excited about the arrival of his unborn twin siblings.

She wrote to her followers on Twitter: "KJ has me lmao this morning! Kids say the silliest things! 'Mommy those babies HAVE to be done cooking'."

Kim married Kroy Bierman in 2011 and welcomed their first son, Kroy Jagger Biermann, on May 30, 2011. Kash was born a year later on Aug. 15, 2012. Her two daughters Brielle and Ariana, are from a previous relationship.

Zolciak announced her fifth pregnancy during the season finale of Don't Be Tardy when it aired on June 25. She took multiple home pregnancy tests and read results from all of them at the same time.

After the episode ended on June 25, Zolciak shared on Twitter that her daughters were officially adopted by Biermann.

"Am I not the luckiest girl in the world!!!!!!??? My girls @BrielleZolciak @arianazolciak are officially adopted by Kroy!!!!" the two-time reality star wrote on Twitter.

Zolciak's older daughter Brielle also shared her excitement about Biermann legally becoming her father on Twitter.

"i have tha best dad ever @biermann71," Brielle wrote about the defensive end for the Atlanta Falcons.

Tags
Kim zolciak