Courtesy of Christina Haack/Instagram; Courtesy of Heather Rae El Moussa/Instagram Christina Haack turns to the best when it ...

Christina Haack laughed off a "sister wives" comment about her friendship with her husband Tarek El Moussa's new wife Heather Rae El Moussa.

Christina Haack shared a story about her mother-in-law on The Flip Off, her and ex-husband Tarek El Moussa's new HGTV series.

Plus, will Christina Haack get married again?

There’s conscious uncoupling and then there’s conscious collaborating. Exes and TV personalities Tarek El Moussa and ...

The duo were joined by Heather’s husband and Christina’s ex, Tarek El Moussa, in a new promo for their HGTV series ‘The Flip ...

"We all live together!" Tarek El Moussa joked after the moment, which occurred during an Instagram Live HGTV stars Christina ...