Jamie Dornan’s Workout: See the Fifty Shades Star’s Insane Biceps!

Jamie Dornan
Jamie Dornan showed off his muscles on Twitter on Feb. 3. Frazer Harrison/Getty Images

Fifty Shades? More like 50 reps! It’s no secret that former Calvin Klein underwear model Jamie Dornan is a hunk. After all, the Irish lad was chosen to play Christian Grey in the highly anticipated film adaptation of E L James’ smash erotic novel, Fifty Shades of Grey. But the 32-year-old hottie also works hard to keep his drool-worthy body in shape. 

On Tuesday, Feb. 3, he tweeted a shot doing his Ironfit workout, showing off some crazy-defined, bulging biceps in a challenging pose. 

“With the boys @Ironfit_tv down @T13 . Gave them 2 seconds to take this picture before I collapsed & cried . #ironfit,” he captioned the image.

jamie dornan's impressive biceps
Jamie Dornan posted a photo of his workout on Feb. 3 to Twitter. Courtesy of Jamie Dornan/Twitter

Ironfit is a company of professional trainers that describe themselves as “strength and movement coaches, nutrition nuts, pro hustlers, iron junkies, hunter G’s, and free range human beings” on their Twitter handle. 

Dornan is almost a week away from from the Friday, Feb. 13 premiere of Fifty Shades of Grey. He recently admitted to Glamour that the raunchy film’s raciest scenes weren’t his favorite to act.

"Some of the Red Room stuff was uncomfortable,” he told the magazine. “There were times when Dakota was not wearing much, and I had to do stuff to her that I'd never choose to do to a woman."

Sign up now for the Us Weekly newsletter to get breaking celebrity news, hot pics and more delivered straight to your inbox!

Want stories like these delivered straight to your phone? Download the Us Weekly iPhone app now!