Dakota Johnson stopped by The Tonight Show Starring Jimmy Fallon this week, to prove just how sexy she really is!

Dakota kicked things off with the classic romantic line of:"Excuse me while Igo slip into an pair of old sweatpants."

While Jimmy epically failed with his turn, as he read aloud:"I want to go fishing this afternoon, do you know where I can buy grubs or worms."

Fifty Shades of Grey is out in UK cinemas Feburary 13.