Channing Tatum's romance novel will be filled with "lots and lots of sex".

The 45-year-old actor is teaming up with Bad Feminist author Roxane Gay on the project, and she has revealed the "most ridiculous way" their partnership got started, while giving a hint about the book's spicy content.

Appearing on Dua Lipa's Service95 podcast, Roxane recalled: "A journalist asked him if he knew that there was this writer who had a crush on him and wrote a book called Bad Feminist.

"And he was like, 'Oh, I haven't heard of it, but I'll look into it.' And then he did.

"And then someone approached him about doing a book project, and he was like, 'Yes, I would love to, if I can co-write it with this person.' "

Roxane revealed that the book will drop "hopefully next year", and it's packed with "lots of sex".

She added: "It's very sexy. Lots and lots of sex."

The new project was first announced in 2023 as the duo are taking their time to make sure they do the book justice.

Last year, Roxane explained that the plot is "actually grounded in reality", and features plenty of romps in a bakery.

She told The Late Show with Stephen Colbert: "You know how so many people make these little pacts?

"Like, 'If we both turn 40 and we're still single let's get married.' So they actually get married and then they fall in love afterwards...

"A voluntary arranged marriage. With lots and lots of sex in a bakery."

Channing has some writing experience, having penned the Sparkella series inspired by his daughter Everly, 12, who he has with ex Jenna Dewan.

Back when their upcoming spicy novel was first announced, Roxane admitted she was impressed by Channing's attitude.

She told Vanity Fair: "For whatever reason, he is intimately aware of his privilege. He doesn't apologize for it, which is, frankly, refreshing.

"Like, you're an absurdly attractive famous wealthy white man. Please don't pretend that isn't great. But he treats people well."

She was also pleased the Magic Mike actor did "the right thing" by making sure they would both be equally paid for the novel.

She added: "We shouldn't give medals to people for doing the right thing, but at the same time, most people simply don't do the right thing and it is notable when it happens."