Kim Zolciak posted an Instagram selfie over the weekend in which she wore a string bikini and put her baby bump fully on display.

“Going swimming with the kiddos!” she captioned the photo. “The pool makes me feel so much lighter! This belly #twins #excited #blessed #nofilter.”

Zolciak, 35, is currently pregnant with twins with her husband, Atlanta Falcons defensive end Kroy Biermann. The babies will be the third and fourth children for Zolciak and Biermann. They’re already parents to Kroy Jr., 2, and Kash, 1. Biermann also recently adopted Zolciak’s daughters from her previous marriage – Brielle, 16, and Ariana, 11.

Kim Zolciak and Kroy Biermann (Instagram)

The Real Housewives of Atlanta star announced her latest pregnancy in June and revealed that she was carrying twins last month. “I’m having twins and I couldn’t be more excited. I was completely shocked. I had no idea,” Zolciack told E! News. “It was a natural conception, but twins do run in the family, so I guess I shouldn’t have been surprised. I can’t believe I am going to be a mom to six children. It’s going to be very busy but it’s a dream come true."

Zolciak later took to Twitter to express her gratitude to all her and Beirmann’s well-wishers and shared that her athlete husband wasn’t all that surprised she was carrying double.