Dakota Johnson And Jamie Dornan Tell Us Who's Most Likely To Sing, Dance, Fall And More: Watch

Who is most likely to watch the porn parody of "Fifty Shades?" The answer might surprise you...

With reporting by Josh Horowitz

Obviously, throughout their many months of filming and promoting "Fifty Shades of Grey" together, Dakota Johnson and Jamie Dornan have gotten to know each other quite well... but does that mean they actually like each other? Based on MTV News' expert research, the answer is definitely "yes" -- but that doesn't mean they were afraid to tell the brutal truth about the other's quirks during a little game of "Who's the Most Likely To..." for an "After Hours" game with Josh Horowitz.

"He sings constantly," Johnson said about her Irish onscreen beau, before noting that it was "almost" too much.

"But he has a really beautiful voice," she added.

The "Fifty Shades" costars also weighed in on everything from who was most likely to flub a line, trip, and -- perhaps most damningly -- be caught looking at themselves in the mirror.

Hey, when you look that good...

"Fifty Shades of Grey" hits theaters on February 13.