Christina Haack/Instagram Christina Haack and Heather Rae El Moussa enjoyed an early Mother's Day with Christina's son Brayden The 9-year-old hosted his mom and stepmom at his school's Mother's Day celebration Heather previously thanked Christina for letting her be a part Brayden and 14-year-old Taylor's lives Christina HaackandHeather Rae El Moussaare celebratingMother's Daya little early. On Friday, May 9,The Flip Offcostars shared ajoint post on Instagramas they attended Christina's 9-year-old sonBrayden's Mother's Day party at his school. In the adorable photo, Brayden can be seen standing in between his mom and his stepmom Heather, placing an arm on each of their shoulders. "We got spoiled early for Mother's Day by this cutie. Beautiful classroom tea party, sweet notes and lots of love," the two wrote in their joint caption. "💕 Hope everyone has a wonderful Mother's Day weekend as well!" Heather, who is married to Christina's ex-husbandTarek El Moussa, is stepmom to the former couple's kids Brayden andTaylor, 14. She also shares sonTristan, 2, with Tarek. Christina is also mom to sonHudson, 5, whom she shares with exAnt Anstead. Never miss a story — sign up forPEOPLE's free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer, from celebrity news to compelling human interest stories. Earlier this month, Heather spoke with PEOPLE about what traditions her family does every year on Mother's Day and shared that she'sgrateful that Christina allows herto have time with Brayden and Taylor on the special day. "Usually — and I'm thankful for Christina that I get to spend time with the kids — we'll do a brunch with the kids and then she'll do something else with them later on in the day," Heather told PEOPLE. "And we get together with my side of the family, Tarek's side of the family, we usually do a brunch. I try not to cook or do anything at the house because I don't want to clean up," she continued. "So it's like getting out of the house, celebrating and then coming home and just sharing the day with Tristan and Tarek after the kids go to Christina's house." In April, Heather appeared on Melissa Gorga's podcastOn Displayfrom PodcastOne and spoke abouther relationship with Christina. The proud mom said she gives Christina props for how gracefully she handled Heather's relationship with her kids. After Gorga asked her if there were different rules or routines at her house than at Christina's, Heather shared that the mom of two "never micromanaged me," and her husband didn't either. Heather Rae El Moussa/Instagram "That was really nice that I wasn't told what to do, how to do it. I was able to just kind of come in and figure things out on my own and kind of at my own time," she continued. "And she was very much in their life." "So it wasn't like I was coming in to replace her. I was just coming in to be added love and help take care of them and help raise them," Heather said. "And you know, I give her props because being now a mom and having my son, it would be really hard to have a woman come in and raise my kid and not know what they're doing at the household." She went on to say she believed Christina always knew she only had good intentions where the kids were concerned. "But I think Christina knew early on that my heart was just pure. I was there to love and I was there just to be a really good stepmom," Heather said. "And I think she felt that and knew that and the kids loved me so much that she was grateful for me." Read the original article onPeople