LOS ANGELES, CALIFORNIA: Paris Hilton is overjoyed with her son Phoenix Barron who was born via surrogate in January.

The 42-year-old star gushes about her baby boy in an interview with People and says that his smile makes her heart melt.

She also reveals that she is eager to have another baby and hopes to have a girl next.

How Phoenix brightens up Paris Hilton's day?

Hilton, who married Carter Reum in September, says that she is “obsessed” with her little angel and loves spending time with him.

“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 and this smile melts my heart,” she said.

“He’s my best buddy and I just am obsessed.” She also reveals that Phoenix is a happy and smart baby who loves to laugh and dance.

He has even learned to say a few words, including “Mama”, “Yes” and “Dada.” "I felt like the other day when I said, ‘I love you, bey.’ He said something back to me and it sounded like, ‘I love you,’" she said.

Why Paris Hilton wants a baby girl next?

Hilton admits that she is eager to have another baby and hopes to have a girl next. “[I]can't wait to have another baby," she told the publiaction.

She says that she has always dreamed of having a boy and a girl and that it would be the perfect family.

She adds that she is enjoying being a working mom and balancing her career and family. “I feel like I have it all. I have the most amazing husband, the most beautiful baby, and I’m doing what I love,” she says.

Hilton says that her mother, Kathy Hilton, is “so in love” with her grandson and visits him often.

“She’s always there. She’s always bringing him gifts and toys and clothes. She’s just the best grandma ever,” she says.

How does Paris Hilton deal with the bullies who targeted her son?

Hilton also addresses the negative comments that some people have made about her son’s appearance last month, especially the size of his head.

She said at the time that she was hurt by the “cruel and hateful” remarks and that her son is “perfectly healthy, adorable and angelic."

She told the publcation earlier that she has consulted with doctors and that Phoenix has a “large brain."

She also shares a message for the bullies who targeted her son. “Living life in the spotlight, comments are inevitable, but targeting my child, or anyone else’s for that matter, is unacceptable,” she said.

“This hurts my heart more deeply than words can describe. I’ve worked hard to cultivate an environment that is all about love, respect, and acceptance, and I expect the same in return,” she said.

“If I don’t post my baby, people assume I’m not a great mother and if I do post him, there are some people who are cruel and hateful,” she continued as repored by USA Today.

“It’s hard to fathom that there are people in the world who would target such innocence. I hope that people can treat one another with more kindness and empathy," she added.