Emma Watson appears all grown up on the cover of Glamour magazine and its accompanying photo spread, with a sexy, short pixie haircut and revealing outfits.

The British actress flashed the lace-trim bra she was wearing for several shots in the magazine spread while posed in a chair, and later showed her sultry side in a school girl-inspired fashion shot, where she wore a pleated plaid skirt with sheer hosiery.

The "Harry Potter" star and Oxford University student opened up to the magazine about the leaked photo of her kissing her boyfriend, her obsession with "Girls" creator Lena Dunham and the revelation that came to her when she shot her latest film, "The Perks Of Being A Wallflower."

View the photos of a sexy Emma Watson for Glamour magazine. 

The 22-year-old was recently rumored to play Anastasia Steele in the film adaption of "Fifty Shades Of Grey," but to the disappointment of "Harry Potter" fans, her rep admits it wasn't true and just a rumor.

In the October 2012 issue of Glamour magazine, Watson discussed the embarassment from being caught kissing her boyfriend at the Coachella Music Festival.

"My friend got me tickets for my birthday, and what am I going to say? No, I'm not going to go, because I don't want to be photographed? But it was a huge crowd, and I thought there was no way anyone could get pictures of me, but somehow they found me," she said. "It's difficult on my dating life, because anyone I get photographed with is automatically my boyfriend. So it just makes it look as if I've had, like, 6,000 boyfriends!"

Watson revealed what filming "The Perks of Being a Wallflower" made her realize about her career.

"Making this movie was so pivotal for me because I realized I do really want to be an actress, which wasn't something I fully knew, since 'Harry Potter' was such a singular experience. Obviously I'm nervous to see what other people think, but it kind of doesn't matter to me," she admitted. "It's so cheesy to say this, but it's the journey, not the end goal, that's important."

She also admitted her obsession with HBO "Girls" creator Lena Dunham, stating the following:

"I am literally obsessed with [Girls creator and star] Lena Dunham. She's, like, my favorite person in the world. I follow her on Twitter; I read her every day. And, yes, 'Girls' is an example of something so refreshing because it feels real."

The October 2012 issue of Glamour magazine arrives on newsstands Sept. 12 and "The Perks of Being a Wallflower" arrives in theaters on Sept. 14.

Watson will also appear in next year's "Bling Ring," a true story about a group of high school students who broke into and robbed celebrities' homes. 

Tags: Emma Watson Fifty Shades Of Grey Harry Potter Glamour magazine