Riley Keough says it was 'really uncomfortable' filming a sex scene with her real-life husband for 'Daisy Jones & The Six'

• Riley Keough stars as the titular heroine in "Daisy Jones & The Six," which premiered Friday.
• Her real-life husband, Ben Smith-Petersen, makes a cameo in episode two during a brief sex scene.

Riley Keough said filming a sex scene for "Daisy Jones & The Six" was "more awkward" than expected because they cast her real-life husband.

The much-anticipated show, which premiered on Amazon's Prime Video on Friday, is based on the bestselling novel by Taylor Jenkins Reid.

For a brief scene in episode two, Keough's titular character is shown having unenthusiastic sex with a random man. Fans of Keough may recognize him as Australian stuntman Ben Smith-Petersen, her partner for a decade.

"The cameo came about because I have to have intercourse with a random person in the show, and the producers were like, 'It would be so funny if it was your husband,'" Keough said during a recent appearance on "Late Night With Seth Meyers."

"I think they were thinking it would be less awkward, and then we got there and they're like, 'This is really uncomfortable,'" she continued.

Keough explained that simulating sex with your actual spouse feels unnatural, and they ended up just "giggling the whole time."

"Normally, typically, when you do these things and it's somebody coming in for the day, you're like, 'Hello, nice to meet you,' and you kind of get down to business and it's very professional," she said.

"It was so weird," she continued. "In the scene, I'm not really enjoying it. And I really kept feeling inclined to be like, 'In real life, it's not like this.' And I was like, 'I'll just keep that to myself.'"

Keough and Smith-Petersen met while filming "Mad Max: Fury Road" in 2012. The couple got married in 2015.

Keough recently opened up to Insider about her character's romantic journey in "Daisy Jones" — and revealed that she "totally" believes in soulmates.

"You can have more than one soulmate and there's different versions of that," Keough added. "There's the version that you marry and there's the version that's the Daisy version. I think they're really deep connections with other people."

The first three episodes of "Daisy Jones & The Six" are now available to stream on Prime Video. Follow along with our coverage here.