PIC: See Kim Zolciak's Pregnant Bikini Body

USMagazine, Tuesday, June 19, 2012, 11:50am (PDT)

Pregnant and proud!

Kim Zolciak spent Father's Day with her husband Kroy Biermann, three kids and growing baby bump -- which she wasn't too shy to show off.

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"The whole family!" Zolciak, 34, tweeted Sunday with a photo taken aboard a boat. "Great Daddy's day today on the water!"

The reality star proudly flaunted her belly in a strapless white bikini, and later told fans on Twitter she's due in "a couple months."

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The Real Housewives of Atlanta star is currently expecting her second child (another boy!) with Biermann, whom she married last November. Their over-the-top wedding aired on the season finale of her show Don't Be Tardy for the Wedding last Thursday. The couple welcomed their first child, Kroy, Jr., together on May 20, 2011 and announced their second pregnancy 10 months later. Zolciak also has two daughters -- Brielle, 15, and Ariana, 9 -- from previous relationships.

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Brielle tweeted a nice message to stepdad Biermann, writing, "Happy Father's Day to the best daddy in the world. I couldn't ask for a better dad. Thank you for loving Ana & I like we're your own."

Zolciak also tweeted, "Happy Fathers day to [the] most incredible father and daddy. We love you so much and our so grateful for you!"

This article originally appeared on Usmagazine.com: PIC: See Kim Zolciak's Pregnant Bikini Body