Tarek and Heather Rae El Moussa and their son Tristan, who just turned 8 months old.Photo:Axelle/Bauer-Griffin/FilmMagic, Heather Rae El Moussa/Instagram

Tarek and Heather Rae El Moussa Celebrate Baby Son Tristan Turning 8 Months Old: ‘Sweet Boy’

Axelle/Bauer-Griffin/FilmMagic, Heather Rae El Moussa/Instagram

TarekandHeather Rae El Moussaare celebrating their sonTristan Jay!

Heather, 36, shared a video of Tristan holding a giraffe toy on her Instagram Story alongside the caption, “I cannot believe my little love is eight months old!!”

In the video, theSelling Sunsetstar spoke to her son, saying, “Cutiebear is 8 months old today, yes you are,” before panning away from Tristan in his stroller toward her dog, Bugz, and then back again. “8 months old, big boy!” she added.

Tarek, 42, reposted the clip on his own Story with a heart emoji and the message: “Happy 8 months sweet boy!!”

Tarek and Heather Rae El Moussa’s son Tristan on his 8-month birthday.Heather Rae El Moussa/Instagram

Tarek and Heather Rae El Moussa Celebrate Baby Son Tristan Turning 8 Months Old: ‘Sweet Boy’

Heather Rae El Moussa/Instagram

After her video, Heather also shared a photo on her Story that showed Tristan on a blanket marked with his new age. In the text over the photo she wrote, “Our sweet boy is 8 months old today!”

She added that her son is currently “starting to clap," and is “obsessed with walks, bugz & food.”

“He laughs all day,” she continued. “We love you so much Tristan Bear 🐻.”

Just a few days ago, Heather was celebrating Tristan for a different reason.

On Thursday, theSelling Sunsetstarshared a sweet post dedicated to her now-8-month-old son, as well as her stepsonBrayden, 8, 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,” she captioned the post, a carousel of photos of Tristan and Brayden.

She continued, “There’s nothing I love more than being a mama & bonus mama 💙 These boys have made me more fulfilled than I could have ever imagined. Celebrating from NYC so kisses through the phone!! Peek the boogie 😂.”

The couple welcomed Tristan on Jan. 31. He joinedTarek’s older children, son Brayden and daughterTaylor Reese, whom he shares with ex-wifeChristina Hall.

Tarek and Heather Rae El Moussa Celebrate Baby Son Tristan Turning 8 Months Old: ‘Sweet Boy’

Heather alsoshared a post dedicated to Taylor earlier this monthon the eldest El Moussa kid’s 13th birthday.

“Happy birthday beautiful girl! 🤍🫶🏻 I can’t believe you are 13 today!” she wrote alongside a carousel of photos of the mother-stepdaughter duo.

“I’ve watched you grow into a smart witty, confident, sweet but strong willed young lady,” she continued. “You have such a huge heart and you are truly unstoppable. I love you so so much and I love being your bonus mom. 🤍.”

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.

source: people.com