Porn star Lucy Lee took a serious pounding Friday morning after another car smashed into her Mercedes -- but law enforcement sources tell TMZ, Lucy was wasted ... and the accident was all her fault.
Sources tell us, Lee was driving in L.A. around 1AM when she pulled an illegal maneuver, causing another vehicle to plow straight into her ... car.
When police arrived at the scene, we're told they detected a strong odor of alcohol on Lee's breath -- so they administered a field sobriety test ... which she bombed.
Lee was arrested on the scene and brought to the police station -- and according to sources, she blew over twice the legal limit on a breathalyzer.
Lee was released on bail Friday.
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