Watch Dakota Johnson Ask David Letterman: — hollywoodreporter.com

It's official: David Letterman is a big blusher. The host turned bashful on Tuesday night's Late Show With David Letterman when the Fifty Shades of Grey star mentioned her mother, Melanie Griffith. "[My mom] told me to tell you that she loves you — she really meant it!" she told him. "She brought you handcuffs one time." The actress then humorously asked, "... So, are you my dad?" Read more 'Fifty Shades' Box Office: Country-by-Country Breakdown

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