Kicked out

You lasted two minutes before Mr. K heard you sigh. It was followed by ten minutes of **** and, once again, you were kicked out of physics. You walk about aimlessly for awhile, then find an empty room to fall asleep in. Just as you start to drift to sleep you hear some commotion outside the door, the sound off someone running. No, two people. Suddenly Nicola bursts in, breasts swinging. She closes the door and waits until the sound of the other footsteps fades away. She pulls herself up onto a table and, having not noticed you, says "Stupid son of a bitch." She catches her breath before swinging her legs up onto the table as well. Then you noticed fresh cuts and bruises along her right leg. You don't move as she inspects herself. She starts to scratch at one of the cuts, making it worse. You look on confused as Nicola worsens her wound and, oddly, starts to moan in pleasure. She closes her eyes and lays back, one hand finds its way into her panties, you can see it outlined perfectly, while the other breaks the flesh on her leg which has started to bleed freely. "My god." you think "She's some kinda pain pervert." You keep looking in horror as she practically inserts a finger into her leg while furiously finger fucking herself. You are partly disgusted but are starting to become very horny.