February 11, 2015 10:30 AM EST

Fifty Shades of Grey star Dakota Johnson can make anything sound sexy and she proved it Wednesday on The Tonight Show with Jimmy Fallon.

The young star, who plays Anastasia Steele in the global phenomenon, was challenged to make sentences like, “Let me slip into my sweatpants” and “Excuse me, sir, this strawberry-flavored Chapstick just fell out of your fanny pack” sound alluring.

Johnson had no problem making those un-sexy lines sound like sultry come-ons. Fallon, however, could barely keep a straight face, let alone a come-hither look, while trying to work his magic on his lines like, “You’ll have to excuse the cloud of Gold Bond Powder.” Even a simmering over-the-shoulder look couldn’t give Fallon the same power Johnson (or even Steve Buscemi) has in one little wink, proving there’s a reason Jamie Dornan was cast as Christian Grey instead of Fallon.

Read next: Watch Jamie Dornan Read Fifty Shades of Grey in a Scottish Accent

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