Mary Fitzgerald Celebrates Heather Rae El Moussa's Gender Reveal, Posts Gorgeous Snaps On Instagram!

Loyalty runs deep among the "Selling Sunset" crew!

The gals of the Oppenheim Group were in full celebration mode over the weekend, as momma-to-be Heather Rae El Moussa celebrated the gender reveal party for her "miracle baby!"

The "Selling Sunset" star and her husband, Tarek, have publicly chronicled their journey to parenthood for quite a while; Mrs. El Moussa hosted an Instagram question and answer session devoted to her fertility journey earlier this spring.

"I promised I would keep you guys updated with our journey to a little El Moussa," she shared at the time per The Blast's report, "but first, I just want to say I'm so grateful to be able to share this part of my life with you guys."

And share, she has, indeed! Mr. and Mrs. El Moussa, who tied the knot last October, have frequently kept their fans in the loop on Heather's pregnancy via Instagram captions.

Nearly a week ago, the momma-to-be shared a gorgeous black and white shot of her and Tarek on the beach, where she celebrated their journey to parenthood!

Her gratitude was on full display in the captions as she told fans, "If you know us, you know our journey has been far from normal, so of course, our pregnancy story is the same..." At the end of her caption, she revealed their baby had been conceived naturally!

The "Little El Moussa" has yet to make their debut earthside, but they have already been well celebrated!

Their parents have chronicled the massive and star-studded gender reveal party, held this past Saturday, July 24th.

Both Mom and Dad shared a reel, featuring the moment they found out the sex of their kiddo. The parents-to-be gathered with Tarek's children from his previous marriage to Christina Haack, and the family excitedly revealed whether they would be having a boy or a girl with colored confetti!

In the caption for the photo which captures the exact moment the elated family found out whether the newest member would be a boy or girl, Mrs. El Moussa wrote, "Replaying this moment over and over in my head," later adding, "I genuinely thought I would be prepared for how I would feel when I found out, but nothing could have prepared me for the butterflies in my stomach..."

There's nothing like celebrating the biggest milestones of your life alongside the ones who make it grand!

Several of Mrs. El Moussa's best pals attended the get-together, and of course, they were ready to capture every moment of the El Moussa family's big day!

Mary Fitzgerald was excited for her friend, to the point where she posted not one, but two photo sets of the big day on Instagram.

Earlier today Fitzgerald posted a photo featuring her and Emma Hernan cradling El Moussa's stomach. The celebratory photos followed a photo set she posted yesterday, featuring the aforementioned trio posing with other guests alongside a collection of both pink and blue balloons!

Several members of the "Selling Sunset" crew, including Fitzgerald's husband Romain Bonnet, commented on her second photo set, all sending their well-wishes for The El Moussa's new baby BOY!

Fitzgerald wrote a little love note to her co-star and friend in the caption of her latest photos from the party.

"Such a beautiful day celebrating our gorgeous girl. HUGE congrats to both of you, and can't wait to meet your sweet little BOY," she shared. Fitzgerald added a finishing touch by including a blue heart!

Cheers to the El Moussa's! Only time will tell whether the smallest El Moussa will grow up to work at The Oppenheim Group!