Harry Potter alum Emma Watson, who plays a very bad girl in Sofia Coppola's upcoming film about notorious Hollywood burglars "The Bling Ring," has apparently let some of that femme fatality seep into her off-screen life.

The Sun is reporting that a source claims Watson has taken up pole dancing for sport at the advice of a Bling Ring co-star.

"Like on all film sets, there's often so much time spent doing nothing," said the Sun's insider. "One of the other actresses on the set has been pole-dancing as a sport for a while and Emma decided to give it a go as well. She's amazed with the results because it has toned up her body so well."

Apparently she's found it to be quite enjoyable and "liberating."

The tabloid helpfully reminds readers that Watson has been working to shed her Goody Two-Shoes image for some time now, even going so far as to frequent a "gentlemen's club" to celebrate last year's New York premiere of the final Harry Potter film.

[photo via AP]