Tarek and Heather Rae El Moussa Share Adorable Halloween Photo of Baby Tristan on His 'First Rodeo'

"This isn't our first rodeo...but it IS Tristan's," the couple wrote in their caption

<p>Heather Rae El Moussa/Instagram</p> Tarek and Heather Rae El Moussa and their son Tristan on Halloween.

Heather Rae El Moussa/Instagram

Tarek and Heather Rae El Moussa and their son Tristan on Halloween.

Tarek and Heather Rae El Moussa are flipping out over son Tristan Jay on his first Halloween.

The Flipping El Moussas stars shared their 9-month-old's first costume for the special occasion on Instagram, showcasing their cowboy-inspired Halloween costume. Heather wore a pink cowboy hat and pink bandana, carrying Tristan, who wore a mini brown cowboy hat, brown pants and brown cowboy boots. Tarek stood next to them, wearing a black cowboy hat and red bandana.

"This isn’t our first rodeo… but it IS Tristan’s 🤠👻❤️ Can’t believe it’s Tristan’s first ever Halloween and also he’s 9 months old today 🥹," the couple wrote in their caption.

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Related: Heather Rae El Moussa Shares Adorable Photos of Tristan on National Sons Day: 'Honored to Be Your Mom'

"Just missing Tay & Bray tonight but we’re ready to wrangle all the candy and show everyone that there’s a new sherrif [sic] in town 😜 Hope you all have a happy Halloween!! Anyone else dressing up tonight & if you are, what’re you going as?!"

In addition to Tristan, Tarek is also dad to son Brayden, 8, and daughter Taylor Reese, 12, who he shares with ex-wife Christina Hall.

Last month, the Selling Sunset star, 35, posted an Instagram carousel with photos of her son and Brayden for National Sons' Day.

"Happy #Nationalsonsday my sweet Tristan bear 🤍 I am so honored to be your mom - You have made me a better person. There’s nothing I love more than being a mama & bonus mama 💙" she captioned the post.

"These boys have made me more fulfilled than I could have ever imagined. Celebrating from NYC so kisses through the phone!! 😚 Peek the boogie 😂."

<p>Heather Rae El Moussa/Instagram</p> Heather Rae El Moussa with husband Tarek and kids

Heather Rae El Moussa/Instagram

Heather Rae El Moussa with husband Tarek and kids

Tristan, who will make his TV debut on season 2 of The Flipping El Moussas, frequently appears in photos on Heather's Instagram account.

After facing criticism for posting more about Tristan than her stepchildren, Heather cleared the air in June during an interview with Today.

Explaining why the older kids are not featured on her social media accounts as frequently, she said, "Taylor and Brayden are in school all day, and I’m home with Tristan. I can capture moments with Tristan easily.”

Heather also pointed out that she and Tarek share Taylor and Brayden in a 50/50 custody arrangement with their mom.

“They’re also busy with sports and tutoring — they always have something going on. I blink, and it’s 8 o’clock at night,” she added. “So when we’re all together, the last thing I’m doing is standing around taking photos with all three kids.”

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