Mandy Moore's Son Gus Sweetly Says Baby Sister 'Smells Like Honey' as They Celebrate 'One Week with Our Lou'

Moore shares her sons August "Gus" and Oscar "Ozzie," as well as daughter Louise "Lou," with husband Taylor Goldsmith

Mandy Moore's son had the most adorable reaction to cuddling with his baby sister.

On Friday, Sept. 27, the Tangled star, 40, shared a series of photos on her Instagram of her newborn baby girl, Louise "Lou," whom she recently gave birth to. Lou can be seen snuggling up underneath a butterfly blanket, cuddling with Moore, and getting a big welcome home from dad Taylor Goldsmith outside of their house.

Moore also included a sweet video of her son, August "Gus," 3, who sits on a bed next to his new baby sister. "What does she smell like?" Moore can be heard asking.

"Smell her head," Gus says. "What does she smell like?" Moore asks again.

Related: Mandy Moore Welcomes Third Baby, Daughter Louise: 'Our Very Own Big Three'

"She smells like honey," the toddler responds, bending down to smell his sister's head again and again." Smells like honey," he says again, kissing her head.

The newly minted family of five can also be seen in what appears to be Lou's nursery, crowded around the sleeping baby. "One week with our Lou 💓💓💓💓💓," Moore wrote in her caption.

Alongside Gus and Lou, Moore and Goldsmith are also parents to son Oscar "Ozzie," 22 months.

On Sept. 25, the This Is Us alum and her husband Goldsmith announced that they'd welcomed their third baby, daughter Louise Everett Goldsmith, sharing the sweet news on her Instagram.

Never miss a story — sign up for PEOPLE's free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer​​, from celebrity news to compelling human interest stories.

"Lou is here!" the proud mom shared alongside a black and white photo from the newborn's birth. "Louise Everett Goldsmith arrived happy, healthy, expeditiously and right in time for Virgo season."

She continued, "She is our absolute dream girl and her big brothers are already as obsessed with her as we are. Endlessly grateful for our family of 5 (and our very own big three) and soaking in every moment of this special time. 💓💓💓."

In June, Moore and Goldsmith announced on Instagram that they would soon be welcoming a new addition to their family. Alongside a photo of Gus and Ozzie holding hands and wearing T-shirts that read "Big" and "Middle,” respectively, the star wrote, "Sometimes life imitates art.”

"The third in our own Big Three coming soon,” she continued in the caption. “Can’t wait for these boys to have a baby sister. 💓💓💓.”

For more People news, make sure to sign up for our newsletter!

Read the original article on People.