The proud mom and husband Carter Reum also share 15-month-old son Phoenix Barron

Paris Hilton and her daughter London. PHOTO: CAMRAFACE

Paris Hilton is revealing more about her baby daughter London!

On Monday, April 22, the mom of two, 43, described her 5-month-old girl as “very serious and so sweet” on the latest episode of her I Am Paris podcast.

“Well, she’s only 5 months old, but I can already tell that she is very serious and so sweet,” Hilton shared on the podcast.

The heiress and media personality added that London “reminds me so much of my sister Nicky [Hilton],” while her 15-month-old son Phoenix takes after her.

Hilton and her husband Carter Reum with their children London and Phoenix.CAMRAFACE

Paris Hilton Introduces Daughter London in First Official Photos as Family of Four (Exclusive)

“She actually looks fairly similar to Nikki,” Hilton continued. “Like when I look at my baby pictures, Phoenix is my twin and then little London looks like Nikki. So it’s so cute just to, compare all those photos together.”

Hilton added of her daughter’s milestones that “she’s not sitting up yet,” however “she is laughing” and “sleeps through the night.”

“I’ve been very lucky,” Hilton continued before adding that her two children have a close bond and are “like twins” due to being under a year apart in age.

Hilton said her daughter London reminds her of her sister Nicky Hilton.PASCAL LE SEGRETAIN/GETTY

“[London] loves her big brother,” Hilton continued. “It’s so cute just to see them together. He is just so sweet and gentle with her … And sometimes she’ll be in her little rocker and he’ll stand there and kinda like rock it back and forth. And she’ll just look up at him with the biggest smile. And you can just tell that she just completely adores her big brother.”

“I’m just so excited to watch them grow up together and be best friends,” she added.

Hilton and her husband Carter Reum announced the arrival of their daughter London, via surrogate, in November 2023. The couple also welcomed their son Phoenix via surrogate in January 2023.

Months after sharing the announcement of her baby girl, Hilton introduced London to the world by sharing the first official photos of her daughter exclusively with PEOPLE on April 19.

“With Mother’s Day around the corner, I couldn’t resist introducing the world to my baby girl London and sharing these precious moments of our family together,” Hilton told PEOPLE.

“Phoenix and London are everything to me, and I feel like the luckiest woman in the world to be married to the love of my life and have our beautiful family. We make the absolute best team, and my life finally feels complete.”

Hilton and Reum welcomed their two children via surrogate.AMY SUSSMAN/GETTY IMAGES

Hilton, who is also releasing a new song “Fame Won’t Love You” in collaboration with Sia in honor of London, previously said she “wasn’t quite ready yet” to show her daughter’s face and would wait until she felt it was safe enough to do so.

Prior to announcing the arrival of her daughter in November, Hilton alluded to growing her family and told PEOPLE that she “can’t wait to have another baby,” noting that she would love to have a little girl next.

Detailing how she’s “obsessed” with son Phoenix and the sweet moments they share together, she said, “It’s exciting to have this next phase in my life and just to have this little angel who just brightens up my day every morning.”