From left: Brielle, Kim Zolciak-Beirmann, Kroy Biermann, KJ and Ariana
Courtesy Kim Zolciak
06/19/2012 AT 02:00 PM EDT
has nothing to hide!
The reality star, who shared her wedding with the world
on the finale of Bravo's Don't Be Tardy for the Wedding
last week, spent Father's Day with her new husband Kroy Biermann, their son KJ
and her two daughters, Brielle and Ariana.
"Happy Fathers day to most incredible father and daddy @biermann71," she wrote on Twitter
Sunday. "We love u so much and [are] so grateful for u!"
She followed up the Tweet with a family photo
of the Zolciak-Biermanns on a boat – with Kim showing off her growing baby bump in a white bikini.
In May, Zolciak announced she and Biermann are expecting a second son