Paris Hilton's three-year-old son Phoenix is "so protective" of his two-year-old sister London

The Simple Life star told E! News: "London and Phoenix are the twins that are always connected at the hip. Phoenix is the best big brother. He's so protective over her."

And London also has so much love for her big brother.

Paris continued: "She just loves and adores and looks up to him so much. It's really amazing to watch."

Meanwhile, the star revealed Phoenix's birthday was a more low-key affair this year.

The creator of Infinite Icon: A Visual Memoir - a film that traces Paris' music journey - detailed: "We just were at home. It's been so busy with planning the premiere and all the million other things that are happening. So we're gonna plan something soon.

"But we just were at home having cake and presents, and just spending time with each other."

Paris wants to spend as much time with her bundles of joy as possible - and that includes turning down work offers.

In 2024, the Stars are Blind singer told E! News: "I've really learned this year that life is going and moving so fast, and there's so many incredible moments. I just want to soak it all in, be with my children as much as possible."

Paris added: "I've been saying no a lot. You don't want to miss all those moments with the kids growing up."

Elsewhere, the star credits her five dogs, the latest being a puppy called Princess Hilton, for making Phoenix and London loving and caring people.

In November 2025, she told People: "My dogs are my first babies before I had kids. I've been an animal lover my entire life, and I think it's so important to really instill that into your children.

"[They've] been around animals since they were born. They love them so much, and they're so gentle with them, and so kind and so loving.

"[Introducing children to animals] really teaches them love, responsibility and empathy, as well as being kind and how to take care of something.

"I love that my kids love animals just as much as me."