Goldie Hawn says “good sex” is a key component in her relationship with Kurt Russell

Goldie Hawn has been together for more than forty years and opens up about why her relationship with Kurt Russell is so successful.

On Friday, while celebrating the 20th anniversary of the Goldie Hawn Foundation and MindUP, the actress revealed a key part of their love story.

“You have to have good sex,” the 78-year-old said bluntly in an interview with E! News.

KURT RUSSELL and GOLDIE HAWN KISS DURING A ROMANTIC ASPEN VACATION AFTER 40 YEARS TOGETHER

“Because sex is something that connects and creates more belonging. People who have healthy sexual relationships usually last much longer. But it’s not just because of the act, but because of the warmth and intimacy it creates,” she explained.

“We have to be nice to each other every now and then,” she teased.

Although Hawn said intimacy is important, it’s also the time spent recognizing your differences that truly makes a relationship last.

Goldie Hawn and Kurt Russell kiss. (Goldie Hawn Instagram)

“People who have healthy sexual relationships typically last much longer. But it’s not just the act, but the warmth and intimacy it creates.”

– Goldie Hawn

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“You know you’re not the same person,” the “Overboard” actress said. “You don’t often think in the same way. And you have to accept that, but you have to measure, are we having fun or is this something we want to do? Do we laugh together? Do we share certain things? You don’t have to share everything.

“I think we have high expectations of relationships, but you have to like the person. This is very important.”

Goldie Hawn and Kurt Russell first crossed paths on the set of their film The One and Only, Genuine, Original Family Band, which premiered in 1968. (Goldie Hawn Instagram)

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Russell, 73, had his own opinion about why he and Hawn had such a long run in their relationship.

“I think most people who have been together for a long time have one thing in common,” he told the outlet. “And that means that after so many years together, you have experienced pretty much everything you can experience together and understand all the ups and downs and what they mean.”

“I just love the fact that we met and [we’re] still do it. We still enjoy being together.”

Kurt Russell and Goldie Hawn began dating in 1983. They raised their children from separate relationships together. (Catherine McGann/Getty Images)

The couple originally met on the set of their film The One and Only, Genuine, Original Family Band, but didn’t get together until years later. The work brought the duo back together for their 1983 film “Swing Shift.”

Hawn and Russell, who each have their own children from previous marriages (Kate and Oliver and Boston, respectively), have a son together, Wyatt.

During a March appearance on Dax Shepard’s Armchair Expert podcast, Hawn spoke at length about her relationship with Russell and the obstacles they’ve overcome as a couple.

“We don’t agree on certain things. He was tougher as a parent than I was. … But we have a very, very strong family because of it,” she said.

“That was one of the things that gave us something to talk about,” she said of the reason their relationship stuck.

Kurt Russell says that most relationships that have lasted as long as his with Goldie Hawn are successful because the people in them “experience pretty much everything there is to experience together.” (Matt Winkelmeyer/Getty Images for Netflix)

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The couple is also known not to be married.

“I think if we were married, there probably could have been times where you’d say, ‘Oh come on. I’m done,'” she said to Shepard. Still, Hawn said, “I’m really glad I stayed.”