There is nothing simple about Paris Hilton of two.

Days after confirming she and husband Carter Reum welcomed a baby girl named London, the Paris in Love star—who also shares son Phoenix, 10 months, with the entrepreneur—shared insight into her new family of four. 

"She is just a little angel and my life just feels so complete with my little baby boy and little girl," Paris told Today Nov. 27. "We're just over the moon."

And these days, the heiress is sliving for her new chapter.

"I am loving my mom era," Paris confessed to hosts Hoda Kotb and Jenna Bush Hager. "I just feel so at peace. I'm just so happy, so grateful for my husband and this beautiful family and life we are building together. And I couldn't imagine anything else."

The Simple Life alum, who tied the knot with Carter in 2021, added she is "over the moon with everything."

As for how Phoenix—whom Paris welcomed via surrogate in January—feels about being a big brother?

"I'm like, 'This is your baby sister, London,'" she continued. "And then he's just so gentle and sweet and he'll put his hand out and rub her arm or her face. It's just so cute."

While welcoming her first child, Paris kept it under wraps, surprising her family with the news on season two of Paris in Love. But when it came to baby number two, she clued in mom Kathy Hilton from the start.

"The only people who knew were obviously Carter, my mom and my sister," she explained. "But my parents did not know when it was happening, they just knew it was going to happen. So it was the best Thanksgiving surprise for everybody."

Paris shared the news of London's arrival on Thanksgiving, posting a picture of a pink two-piece set with their daughter's name embroidered on it.

She captioned the Nov. 23 post, "Thankful for my baby girl." 

Along with gushing about her little ones, Paris has also taken a moment to credit her partner in crime.

"It's been such a special time," she told E! News in October. "My little baby boy is my world and he's made my life feel so complete. My husband is just the sweetest, kindest, most loyal and loving partner—just my everything."

Keep scrolling for a look back at Paris and Carter's romance from the very beginning.

The world-famous socialite and her new boo ring in their first Christmas together with a trip to his Michigan hometown in 2019. 

From the start, Paris says she saw something special in Carter.

"I feel so blessed to have found the love of my life at the perfect time," she raves. "He is everything I have ever hoped and dreamed of. Loyal, kind, romantic, handsome, thoughtful, caring, brilliant and perfect for me in every way. I truly believe that everything in life happens for a reason and that we were always meant to be."

The duo jets off to Yellowstone National Park in February 2020.

Paris believes she and Carter are soulmates for life, sharing, "I've heard of twin flames before but I never believed in them 'till I met Carter. He is definitely my twin flame, my best friend, my other half and I can't wait for our future and to spend the rest of our lives together."

The entrepreneur flashes his leading lady a smile as they ride a ski lift in Yellowstone

They say opposites attract, but not in the case of Paris and Carter's love story. "We are both Aquarius, so we are alike in so many ways," she shares. "I love everything about him."

In August, the lovebirds take to the high seas for this Kodak moment. 

What makes Carter stand out from Paris' previous Prince Charming's? As she puts it, "This is the first time in my life where I am with my equal. He wants nothing from me but my love. It's such an incredible feeling to know that. And this is the first time in my life where I have let down my walls and opened my heart to someone."

 

As the fall season approaches, the couple heads to Utah for a romantic getaway. 

Carter showers Paris with gifts, including an adorable dog she named Slivington.

"She is so exotic and has the most stunning baby blue eyes and the cutest personality," the star describes. "I love that he is an animal lover like me."

In November, Paris and Carter celebrate their one-year anniversary with a lavish trip to Bora Bora. 

Calling Bora Bora "one of my favorite places in the world," Paris gushes, "We had the best time together, going on adventures, water skiing, swimming with sharks, turtles and all the beautiful sea life, wakeboarding, jet skiing and swimming in the beautiful warm turquoise waters. He always loves to surprise me. He makes me feel like a princess everyday. I feel like the luckiest girl in the world."

And the award for Best Instagram Boyfriend goes to Carter!

Paris says her man surprised her with "the most beautiful diamond bracelet" for their anniversary. "I was so happy I cried when I read the card and opened up the gift box and saw the gorgeous sparkling bracelet," she adds. "I love it so much and will treasure it forever."

Over the 2020 Thanksgiving holiday, Paris spends time with Carter's family at the Montage Hotel in Laguna Beach, Calif.

"I love how close his family is," she says. "They are such kind and genuine people. We all always have the best time together and it's so nice to spend so much time together."

Mwah! 

Paris' 2020 documentary explored her troubled childhood, an aspect of her personal life that she says impacted her romantic relationships. 

"After what I have been through in life, I was very protective of my heart and letting people in," she explains. "But with Carter it all just happened so naturally—like he was the one I had waited my whole life for. So I'm so happy that I was patient and waited for The One."

Despite such a "crazy and scary" year due to the pandemic, Paris says, "I always try and see the silver lining in everything, and I am so grateful to have had Carter in my life. I can't imagine being single and alone during all this."

"Plus, it brought us even closer being able to spend 24/7 together," she continues. "I'm used to traveling all around the world over 250 days a year, so this is the first time I've been in one place. Carter and I always say to each other that being together like this has literally been like being in a five-year relationship. I've never felt closer to a person in my life."

After getting engaged in February 2021, the couple exchanged vows that November. 

"I finally got to kiss my Prince and begin the happily ever after I've been dreaming of since I was a little girl," Paris wrote on her website. "It was a true fairytale wedding."

For the latest breaking news updates, click here to download the E! News App