New mother Heather Rae El Moussa wore a gray tracksuit as she stepped out with her newborn son Tristan in Newport Beach on Saturday.
The 33-year-old real estate mogul pushed her baby, which she shares with her husband Tarek El Moussa, in a black stroller.
The little boy, who was born in January, was protected by a white cloak as the sun fell on them.
The reality TV personality was makeup-free and gathered her long blonde locks into a no-fuss ponytail.
The Selling Sunset star finished off her casual look with a matching pair of sneakers.
Out and about: New mom Heather Rae El Moussa donned a heather gray tracksuit while out and about with her newborn son Tristan in Newport Beach on Saturday
Heather was joined by a friend, who was wearing a pair of black leggings and a dark cardigan.
He was also wearing a white Yankees baseball cap and had a pair of iPods in his ears as he fiddled with his phone.
Later that day, the mother-of-one, who also has stepchildren Taylor, 12, and Brayden, 7, took to Instagram with new content.
Using the photo-sharing platform’s Stories feature, she uploaded a sweet snapshot of Taylor holding her new baby brother.
The siblings relaxed on a bed and the baby gazed adoringly at her big sister in nothing more than a diaper.
Heather wrote, ‘Tay & Tristan,’ with a white heart emoji, keeping her three million followers engaged.
Earlier in the week, she shared adorable photos of her and her husband giving their newborn baby a bath.
In the photos, she showed her son Tristan’s face as she gently bathed him and kissed him on the forehead.
On the go: The 33-year-old real estate mogul pushed her baby boy, who she shares with husband Tarek El Moussa, in a black stroller
Precious: Later that day, the mother-of-one, who also has stepchildren Taylor, 12, and Brayden, 7, took to Instagram with a photo of Taylor holding her new baby brother
“Mom and dad are enjoying every moment with our baby,” she wrote in the caption of the post.
“Tristan still isn’t sure if he likes bath time, but he loves being snuggled up in his cozy robes,” she continued. Just like mom.
The couple welcomed their baby boy, their first child together, on January 31.
In one shot, the former Playboy model donned a simple black ensemble and tossed her platinum blonde hair into a messy bun.
In another photo, Heather wrapped him in a cozy blanket and cradled him close to her chest.
Another image showed the bombshell in a black and gray cheetah-print robe as she held Tristan’s head while her husband gently rinsed the baby.
Bath time! Her new mom Heather Rae Young, 33, shared adorable photos of her and her husband Tarek El Moussa, 41, bathing her newborn baby on Sunday.
Forehead kiss: After giving her newborn baby a bath, she took a picture of herself kissing him on the forehead.
Expanding their family: The couple welcomed their baby boy, their first child together, earlier this year on January 31
The happy couple announced that they welcomed Tristan into their family with a social media post and celebrated his month-old birthday with a follow-up post.
Heather shared several images on her Instagram account that showed her cradling Tristan and affectionately planting a kiss on his forehead.
The reality TV personality also wrote a message in the caption of her post to let her followers know how she had been dealing with becoming a new mom.
She described February as “a month of love, motherhood adjustments, work-from-home days, breastfeeding ups and downs, the best newborn hugs, sleepless nights and lots and lots of family time.”