Who’s the mystery woman? Their friend Hermione (Watson), with whom Ron is in love, reports the UK’s Telegraph. Best friend’s girlfriend!

“We’ll create something that feels very sexy and very intriguing to bring about a reaction in Rupert,” says director David Yates.

Strangely enough, there’s no talk about Watson taking off her clothes in the scene, so perhaps she won’t be doing the Full Monty. In the past, she’s said she’d go nude for certain acting jobs, but not anytime soon.

As we already know, Radcliffe has appeared nude on stage in the play “Equus,” so this won’t be anything new for him. In fact, it looks like Yates will show off Radcliffe’s skin for more than one scene.

“There are a couple of scenes in the new film in which he will undress, but we’re still thinking about how we present it,” says Yates. “There is another scene in King’s Cross station, where Harry almost dies and sees Dumbledore. In that scene, he will also be naked.”

Wow, these Brits sure do like to get naked.

The Harry Potter star has been named by The Guinness Book of World Records as the biggest-grossing female star of the decade.

Watson’s films were said had grossed $5.4 billion in global box office receipts in the past decade. The one particular role that made her pockets full of dough and should be thanking for, is definitely the role of Hermione Granger.

19-year-old Watson had appeared in six Harry Potter films released so far, and currently on the making of the seventh movie. Another fact, Watson’s overall work actually earned even more in ticket sales than her male Harry Potter co-stars; Daniel Radcliffe and Rupert Grint.

Apparently, not only Watson, Harry Potter makes another person richer than before. The second top-earning actress of the decade goes to another Harry Potter star, Dame Maggie Smith, who play the role of Hogwarts teacher Minerva McGonagall.

So if you a Harry Potter fan, be sure to watch more Hermione and Professor McGonagall in Harry Potter and the Deathly Hallows Parts 1 and 2 in 2010 and 2011. Mark your calendar!