Sara Foster raved to PEOPLE about Kate Hudson's daughter Rani, saying the infant is "the light of their family"

Kate Hudson is a superhero mom, according to Sara Foster.

While attending the WSJ. Magazine Talents and Legends Dinner Honoring Lucas Hedges Monday in Beverly Hills, California, the Bumble Head of Creative and former 90210 actress told PEOPLE her pal’s 3-month-old daughter Rani Rose is “so cute, “so big” and “the light of their family.”

As for how Hudson handles parenting three kids while being a WW ambassador, running her Fabletics line, keeping to a gym routine and more?

Michael Kors Dinner To Celebrate Kate Hudson And The World Food Programme
Credit: Stefanie Keenan/Getty Images

“Kate is the most hands-on mom and I don’t know how she does it all,” admitted Sara, 37, herself a mother of two. “She really does it all. Whoever says women can’t do it all, she does it all.”

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Kate Hudson and daughter Rani
| Credit: Erin Foster/Instagram
2019 WSJ. Magazine Talents and Legends Dinner Honoring Lucas Hedges
Sara Foster attends the WSJ. Magazine Talents and Legends Dinner Honoring Lucas Hedges
| Credit: Stefanie Keenan/Getty Images for WSJ. Magazine

Sara — who is the stepsister of Hudson’s boyfriend Danny Fujikawa — also divulged that baby Rani “has every outfit and turban that you can imagine” in her wardrobe, and is “a very chic baby.”

“Kate puts turbans on her and I’m so jealous because I didn’t know about these turbans when I had daughters,” she told PEOPLE. “Little girls have no hair usually, so these turbans, they’re so cute! I know if I have a third [daughter], I’ll take them all.”

Does that mean the actress thinks she and husband Tommy Haas might give another sibling to Josephine Lena, 3, and big sister Valentina Evelyn, 8? “Who knows. Never say never,” Sara teased. “Things happen when you’re not paying attention.”

Kate Hudson and daughter Rani
| Credit: Erin Foster/Instagram

RELATED VIDEO: Kate Hudson and Danny Fujikawa Welcome Daughter Rani Rose — Find Out the Story Behind Her Name

Sara’s sister Erin Foster can certainly vouch for Hudson’s ability to juggle it all. On Monday, the 39-year-old Almost Famous star was captured on Erin’s Instagram Story, doing an at-home workout with MIRROR before stopping mid-sweat to nurse her daughter.

But the feeding session didn’t stop the mother of three, who wore black leggings and an athletic purple turtleneck crop top with sneakers, from quickly getting back into the action.

Captioning one clip with “Motherhood doesn’t slow us down,” Erin, 36, recorded Hudson happily doing leg lifts, squats and static lunges — all while holding Rani in her arms as the baby girl breastfed.