She slipped the black handled knife out from between the seat cushions and eyed its discolored blade. An urge grew more intense with each moment passing. She gripped it in her fist and undid the buttons on her jeans, then slid the seat back and shimmed them half way down her thighs. She pressed the tip of the blade into her soft, pale skin and drew one long line across her leg.
It took an agonizingly long four seconds before the shallow line became dark and filled with blood. In frantic pleasure, she drew the same lines over and over. The same excitement came, as the times before. This time though, her tongue began to tingle also. For a moment she ignored it and watched little beads of blood form in tiny red rows across her thigh. She used the blade to scrape the blood off and let more come to the surface. Then she couldn't resist it anymore.
She slid her tongue up the metal edge and found a new kind of release.