Joey King describes co-star Nicole Kidman’s rigorous butt workouts as ‘epic’ and ‘awful’

Nicole Kidman’s co-star Joey King spoke about the “awful” routine the Aussie actress made her do on the set of their new Netflix movie.

Nicole Kidman likes to feel and share the burn.

During an appearance on The Tonight Show with Jimmy Fallon on Monday, Kidman’s A Family Affair co-star Joey King spoke about what she had learned from working with the Academy Award-winning actress on the Netflix film, which also stars Hollywood heart-throb Zac Efron.

“They’re both like so hot,” she told Fallon of the actors, 57 and 36, respectively.

Joey King spills on Nicole Kidman’s epic workouts on The Tonight Show With Jimmy Fallon.

King called Kidman’s workouts “epic” and “awful”.

“They’re like the fittest people I’ve ever met, so, I was inspired by them. So I became a bit of a, you know, tubular gym rat on the set.”

“[Nicole] taught me like the most epic, awful butt workout I’ve ever learned in my life,” she said. “I was like, ‘I’m a youngster. I can hang…I’m agile.’ I thought I could hang, but I couldn’t hang,” King, 24, admitted.

Stream A Family Affair on Netflix, available on Hubbl.

King stars alongside Nicole Kidman and Zac Efron in the Netflix film A Family Affair. Picture: Charley Gallay/Getty Images for Netflix

Kidman keeps her butt in check with moves like “donkey kicks” and “fire hydrants”. Picture: Charley Gallay/Getty Images

“It was all these donkey kicks, and the rainbows, and you know, the fire hydrants,” she said, listing the descriptive names of popular exercises.

“But you have to keep your leg in the air for like 12 years. It’s so hard.”

King supported Nicole Kidman when the Aussie was honoured with an AFI Life Achievement Award in LA on April 27. Picture: Matt Winkelmeyer/Getty Images

Kidman likes to switch up her exercises to maintain her figure.

King said since filming, she has incorporated the arduous routine into her own workout, because “it’s the most effective,” and she added that she often texts Kidman pictures, joking she should “call an ambulance.”

In an interview with the Los Angeles Times, Kidman previously explained why incorporating a variety of different exercises was ideal for remaining fit.

“If you think you are going to wake up and run five miles every morning for the rest of your life, you’ll get bored and hit the snooze button after a week. So I try and mix it up with sports, running, yoga and even just going for a walk with my husband and the kids. Living in Nashville makes this easier, as it’s so nice just being outside,” she explained. “I also love spinning. I try to get everyone to spin.”

This article originally appeared in Fox News and was reproduced with permission