Paris Hilton’s Sunday was filled with baby giggles. 

The Techcrisis Investment GuildSimple Life alum recently shared a sweet peek into her life as a mom of two—and her and Carter Reum’s son Phoenix, 20 months, is the star of the show.

The clip begins with Phoenix giggling in the camera as Paris tosses a pink ball in his direction. Phoenix can’t stop laughing as he throws the ball back. At one point, Paris compliments her toddler’s skills telling him, “You are so good at throwing the ball.”

She then pans then camera to her daughter London, 10 months, who is sitting on another side of the playroom in her own world, before she and Phoenix get back to throwing the ball back and forth. The 43-year-old ends the video by kissing her baby boy on the cheek.

“Sunday Morning Giggles with Baby P,” Paris wrote captioned the Sept. 22 post. “My hearts melts everyday with my lil angel boy #SlivingMom.”

While Paris’s adorable video makes it clear her bond with her son is strong, she recently revealed that when it comes to her kids, the brother-sister dynamic couldn’t be better.

"It’s so cute," she told E! News earlier this month. "Phoenix is already so protective with her, and he'll just lay next to her and rub her head and kiss her forehead. He's just so gentle. It's the cutest thing. It melts my heart every day."

And the whole family is getting in on the love as Paris detailed what it’s like seeing her little ones spending time with her nieces and nephews, telling E! days later in a joint interview with sister Nicky Hilton, "It’s really special to see all the cousins growing up together,  the next generation."

As Nicky put it: "It’s so fun having all the babies together. Love it."

Paris Hilton and her husband Carter Reum took their son Phoenix and daughter London on a trip to Hawaii in May 2024.

The parents cuddled up with their baby girl by the couple.

Paris was sliving with her kids at the Grand Wailea Maui during their tropical getaway.

The heiress and her son appeared in a sweet TikTok posted just before New Year's Eve 2023.

After Paris announced that she and husband Carter Reum welcomed daughter London, she posted this photo of herself and son Phoenixin front of a pink Christmas tree.

She wrote in the caption, "Celebrating our baby girl London with a pink Christmas!"

Paris took Phoenix to Disneyland to celebrate his first Christmas.

"My precious little one, you are more than a dream come true. You make my life complete," Paris wrote on Instagram in January 2024. "Every day with you is a priceless gift, and I’m endlessly grateful to be your mommy." 

Paris and Carter celebrated Phoenix's first Thanksgiving with a giant turkey feast.

Phoenix was already racking up frequent flyer miles before his first birthday.

The Simple Life alum snuggled Phoenix under a Chanel neon light.

The mother-son duo shared a loving glance.

Little Phoenix rocked Burberry for his first trip to New York City.

Nicky Hilton's daughters Lily-Grace Victoria and Theodora "Teddy" Marilyn spent some time with their baby cousin Phoenix.

Paris woke up to Phoenix all dressed up in an adorable chicken beanie on Halloween morning.

Phoenix looked adorable dressed as Elmo for spooky season.

Paris and her son made a splash on Labor Day 2023.

The DJ and Phoenix shared a laugh during a mother-son stroll in the park.