Paris Hilton and Kathy Hilton.Photo: Charles Sykes/Bravo/Getty

Paris Hilton, Kathy Hilton

Paris Hilton’s momKathy Hiltonis “obsessed” with her new grandson.

“He is such an angel, he’s the best,” Paris said of her newborn son, beaming that she can’t stop staring at him. “I’m just so obsessed with him, I feel my heart is going to explode.”

Equally obsessed? Paris' mom Kathy, who Paris said is loving being a grandma. “[She’s] obsessed with showing up all the time, unannounced,” Paris joked. “I’m like, ‘Mom, when did you get here?’ ‘Oh, I’ve been here for hours!’ "

Of course, Kathy, 64, has experience as a grandma. DaughterNicky Hilton Rothschild, 39, shares three kids with husbandJames Rothschild:an 8-month-old sonand daughtersLily-Grace Victoria, 6, andTheodora “Teddy” Marilyn, 5.

“Paris and Carter, we know you are going to be the most amazing parents,” Kathy said in a statement to PEOPLE in January, upon news that Paris and Carter had quietly welcomed Phoenix via surrogate. TheReal Housewives of Beverly Hillsstar added that she andhusband Rick Hilton"are over the moon” after the birth of their grandson. “We are so thrilled for you both! Thank you for this perfect addition to our ever-growing, beautiful family.”

Paris Hilton and mom Kathy Hilton.MICHAEL TRAN/AFP via Getty

US socialite Paris Hilton and her mother Kathy Hilton arrive for the Versace Fall/Winter 2023 fashion show on March 9, 2023, at the Pacific Design Center in West Hollywood, California.

Elsewhere in her interview onThe Tonight Show, Paris was asked what sort of playlist Phoenix likes — Fallon noting Paris' career as a DJ.

That prompted Fallon to bring upMiley Cyrus' News Year’s Eve special on NBC where Cyrus brought Hilton — along with Sia — out to sing the song. “I love her so much. She is so cool,” Hilton said of Cyrus, who said is a fan of the song. “She is epic.”

She went on to discussher new book,Paris: The Memoir, noting how she was ready to “tell my truth” in the narrative, which details things like her experience living with ADHD and PTSD from the abuse she experienced in boarding school.

Paris also discusses her relationship with mom Kathy in the book. Among the things that have grown out of the their bond includes Hilton’s love for pranking people. She even has a separate phone for making prank phone calls.

“My mom taught me,” Paris confessed, she said of the “prank-calling afterparty” that they will often have at the end of a night. “She’s the queen of prank calls. She’s so good at it.”

Hilton and her husband welcomed son Phoenix on Jan. 16, 2023.

“It’s always been my dream to be a mother,” Paris told PEOPLE at the time, adding, “I’m so happy that Carter and I found each other.”

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In February, Paris shared the first photos of her son and his name, which holds an extra special meaning. “From the moment I laid eyes on him, my heart felt so full,” she said on her iHeartRadio podcast,This is Paris.“I feel like my life is so complete now. I always wanted to be a mom.”

The Tonight Show Starring Jimmy Fallonairs weeknights (at 11:35 p.m. ET) on NBC.

source: people.com