have started to pop up online, giving Greene entrance into the increasingly non-exclusive club of actresses whose in-the-buff pictures have leaked online.

Greene, who plays vampire Alice Cullen in the "Twilight" saga, has threatened to suck the blood of anyone who posts the pics, legally speaking. "The photos in question, which appear to be of our client, are illegal and are being unlawfully displayed," her attorney says in a statement. "Our client intends to take legal action."

The photos of Greene appeared on PerezHilton.com for a brief time Monday; no word on where they originated. The site later took them down "at the request of Greene's attorneys."

Greene won a Teen Choice Award Sunday night for "Fresh Face Female," one of 11 surfboard trophies collected by the "Twilight" gang. The awards air on FOX Monday night.

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Posted by:Rick Porter