Paris Hilton treats baby boy Phoenix to first trip to Disneyland and calls ‘magical’ outing a ‘dream come true’

Paris Hilton treated her son Phoenix to his first visit to Disneyland and shared the family outing on social media on Sunday.

The 42-year-old socialite posted several photos to Instagram on Sunday of toddler Phoenix, who was born via surrogacy in January and wore personalized Mickey Mouse ears.

“Taking baby P to @Disneyland for his very first adventure was a dream come true,” Paris wrote in the caption to her nearly 26 million followers.

'Absolutely magical and incredibly heartwarming. Watching his excitement and awe at every new sight and sound, it becomes clear why this place is known as the happiest place on earth. These precious moments of pure joy and wonder will remain in my heart forever,” added Paris, who wore an all-black outfit.

She concluded with a message: “It's moments like these that make life so beautiful and remind us why Disneyland truly is the happiest place on earth #CutesieCrew #SlivingMom.”

Paris was joined by her husband Carter Reum, 42, along with her sister Nicky Hilton, 40, and Nicky's daughters Lily-Grace and Teddy.

Carter and Paris also have daughter London, whom they welcomed via surrogacy in November.

Paris kept her daughter a secret from her family until she introduced them to her on Thanksgiving.

During an episode of her I am Paris podcast, the TV star revealed that she always wanted to have a daughter named London.

She said: 'I've always wanted to name my daughter London. I had actually chosen that name for a long time, probably more than ten years. I've always wanted London. I love that name for my daughter.”

The 42-year-old socialite posted several photos to Instagram on Sunday of toddler Phoenix, who was born via surrogacy in January and wore personalized Mickey Mouse ears.

Paris wore an all-black outfit including a leather jacket for the trip to Disneyland

The socialite hugged her son in a tender moment

Carter Reum joined his wife and son at Disneyland

The new mother is gearing up for her children's very first Christmas and, as is typical in Paris, she's holding nothing back.

The Simple Life alum shared her first family Christmas card earlier this week.

“Carter and I couldn't wait to take our very first holiday photo with Phoenix and London as a family of four,” she told People.

“I've always dreamed of this moment and we can't wait to start our own family traditions, celebrate the holidays and ring in the new year,” she added.

“I feel so lucky and blessed to have this beautiful family and this beautiful life together,” she said.

But before she became a mother, she was a celebutante known for her bubblegum pink looks.

“I was going for the Barbiecore vibes before the word Barbiecore even existed,” she explained in British Vogue's Life in Looks video this fall.

“I invented it,” she insisted. 'Barbie is my idol. She is such an icon. I've looked up to her all my life.'

To prove her point, Paris pointed to the photo of her wearing a deep pink minidress to the opening of the Maxim Lounge in Las Vegas in 2001. She completed the look with a handbag featuring a photo of a Barbie doll.

Nicky Hilton and her daughters Lily-Grace and Teddy also joined in on the Disneyland fun

They rode the teacups together at Disneyland

Phoenix had his name written on the back of his Mickey Mouse ears

The first trip to Disneyland for Phoenix included spending time with his cousin

“This was a pink Versace dress that Donatella gave me and my pink Barbie bag that I got at FAO Schwartz in New York,” Paris added.

She then discussed a few other red carpet looks from that era, which often featured her favorite accessory: Tinkerbell the dog.

“When I moved to New York, I didn't have a stylist, an agent, a publicist, none of that. “I did it all by myself and I loved taking my little Tinkerbell everywhere,” she said.

“It was so much fun dressing her because she looked like my first daughter. She was my best friend, my sidekick, my other half. I miss her so much.'