The 32-year-old was allegedly considering pulling out of the raunchy film series, after it was claimed wife Amelia Warner wasn't comfortable with him featuring.
But Jamie has dismissed these rumours. He told NW magazine: "Of course she would have read the scripts well in advance, and she's massively supportive of Fifty Shades."
In fact, Jamie branded the rumours: "Total b****cks."
Filming for the next instalment is set to begin early next year, and Jamie added to the Daily Mail: "The idea was that we honour the trilogy and do all three."
The dad-of-one also took the chance to comment on reports that he and co-star Dakota Johnson have no chemistry.
He said: "They wouldn't have shot the film with us if there was a chemistry problem.
"You have to jump through hoops to get a part like this, and they simply wouldn't have cast us."
Phew – at least that's been cleared up! Let the countdown to film number two begin.