Paris Hilton Shares First Photos of Her Baby Boy: 'Our Entire World'

A day after revealing her son's name, Paris Hilton has now shared the first pictures of Phoenix.

The new mother posted the sweet photoshoot on Instagram with the caption, "Baby Phoenix. Our whole entire world."

One picture features the heiress cradling the infant, while her husband Carter Reum plants a kiss on her forehead. Another shows Hilton solo, holding Phoenix while giving him a gentle kiss on his chin.

The happy parents welcomed Phoenix in January via a surrogate. On the latest episode of her podcast This is Paris, Hilton read an excerpt from her upcoming book, Paris: The Memoir, where she detailed the reason why she gave her son the name.

"If all goes well, by the time you read this, Carter and I will have a baby boy. We plan to name him Phoenix, a name that I decided on years ago when I was searching cities, countries, and states on a map. Looking for something to go with Paris and London [the name planned for a daughter], Phoenix has a few good pop culture reference points—but more important, it's the bird that flames out and then rises from the ashes to fly again. I want my son to grow up knowing that disaster and triumph go around and come around throughout our lives and that this should give us great hope for the future."

She also explained that Phoenix's middle name is Barron in honor of her grandfather Barron Hilton.

"He was always my mentor and I looked up to my grandfather so much and we were so close and I miss him everyday, so I really wanted wanted to honor by having his name in my first son's name," she said.

We're looking forward to many more adorable photoshoots with the newborn!