Dakota Johnson revealed in a Twitter Q&A with Glamour UK that she "stole" underwear and a flogger from the set of Fifty Shades of Grey.

"I stole lots of the underwear," the actress, who portrayed the role of submissive Anastasia Steele in the controversial S&M movie adaptation of the novel of the same title said.

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But why would she do that? Simple... because they were "comfortable."

Then, there's also the flogger. She admitted that she has one in her home and it's been gathering dust.

The 25-year-old actress who graces the cover of the magazine's March 2015 issue together with costar Jamie Dornan, admitted she still doesn't want anyone in her family (she's the daughter of actors Melanie Griffith and Don Johnson) to watch the film because she believes it's "inappropriate."

The movie debuted to unexpected box office last Valentine's Day weekend. The film has so far grossed US$248.7 million.

While her leading man went to see a sex dungeon to get his role of Christian Grey ready, Johnson said that she did not do much research about her character.

Yes, she didn't go to the sex dungeon because she "wanted to keep myself a little bit distanced from it at first because I wanted Ana's reaction to certain things to be honest and real."

Johnson was thankful for Dornan for being extra protective of her, particularly during the filming of the sensitive scenes.

"Jamie would be the first one to throw a blanket over me," she said, when she was tied to a bed and after her naked scene was called to a cut.

TagsDakota Johnson, Fifty Shades of Grey, Jamie Dornan