Jamie Dornan Shows Off Bulging Muscles In Hot Workout Pic!

Check out Jamie Dornan‘s bulging muscles during an intense workout session in a pic posted on Twitter!

“With the boys @Iron_fit down @T13 . Gave them 2 seconds to take this picture before I collapsed & cried . #ironfit,” the 32-year-old Fifty Shades of Grey actor captioned the hot pic, which shows off his strength while lifting up his entire body.

PHOTOS: Check out the latest pics of Jamie Dornan

Looks like Jamie is bulking up right before the promotion tour for Fifty Shades of Grey kicks off!

Bigger pic inside…