She holds her hands up, the smeared blood like a dark stain on her hands, she can only imagine what her face must look like, and she stares for a long awkwardly silent moment before the incessant whispering of the Beast is like a mad man shouting in her head, and she grabs his shirt, pulling him close, catching him off guard, and she sinks her teeth in his neck, even piercing his shirt in her haste.
He makes a noise, startled, but it's quickly stifled, and his hand grabs her leg, quickly slinking up her thigh in an unconscious move on his part. She clings to him desperately, the blood flowing over her lips and across her tongue akin to the food of the Gods, and she drinks easing the hunger pain. His firm grip on her leg weakens and it brings her back to her senses.
I'm killing him!
The mad man inside continues to yell, laughing in a way, and she releases her bite, struggling to make the voice quiet down. The officer falls to the ground and she looks down at what she's done. Tiny rivulets of his sweet blood pool in the crook of his neck and following her compulsions she leans over him and licks at it wanting desperately to take more. She's surprised to find that after licking at the blood there is no evidence that she was ever there. Looking horrified at the cop, seeing how pale he is, she shakes his arm a little, "Officer?"
He groans quietly and it startles her. She gets up and runs away.