Paris Hilton is working on a "new project" with Nicole Richie.

The 45-year-old star and Nicole, Paris' long-time best friend, are "talking now and making plans for another new project soon" - but Paris has refused to share any specific details about their latest collaboration.

The blonde beauty told Us Weekly: "Nicole and I are talking now and making plans for another new project soon, so I cannot wait.

"Nicole and I have been best friends since we [were] two years old, so all of my memories have been with her. I'm really excited for the new project that we're working on now."

Paris and Nicole, 44, are best known for their appearances on The Simple Life, their hit reality TV series. They reunited in 2024 for Paris and Nicole: The Encore, and Paris admits that she relished shooting the show.

She said: "That was so much fun doing The Encore together."

Meanwhile, Paris previously admitted that she's found motherhood to be the "most beautiful thing".

The reality TV star - who has son Phoenix, three, and daughter London, two, with her husband Carter Reum - admitted that she loves her family life.

Paris - who has been married to Carter since 2021 - says in Infinite Icon: A Visual Memoir: "Being a mom, it's the most beautiful thing I have ever experienced.

"[It's] the kind of love that's so deep, it changes you forever."

Paris described spending time with her young children and watching them grow up in front of her eyes as "pure magic".

The socialite - who has enjoyed success as a model and in the music business - said: "When I look at my baby's faces, I see everything I was ever meant to be. London and Phoenix are my whole heart, my 'cutesie crew.'

"Every smile, every cuddle, every little moment with them feels like pure magic. They've given my life a new kind of sparkle -- one that's deeper, softer and so full of love it takes my breath away."