TWILIGHT STAR ASHLEY NUDIE CUTIE FULL FRONTAL DEBACLE

Fresh faced TCA winner Ashley Greene pulls out the big legal guns to shut distrib of naughty nude pix circulating on the net.

The morning after winning a Teen Choice Awartd, raunchy images of the naked Twilight starlet, 22,  began circulating in cyberspace - the same day she was caught lip locking  Gossip Girl hunk Chace Crawford in the back seat of a car at LAX.

The steamy pix which include a full frontal body shot was immediately given a cease-and- desists salvo by Greene's rep:

"The photos in question, which appear to be of our client, are illegal and are being unlawfully displayed. Our client intends to take legal action."

Nothing like your shedding a kid image with adult pix -- - just ask Disney tween hottie Vanessa Hudgens who's already been "out-ed" twice.