School Dirty Secrets II

Not only is this a very hot scene, it's got my imagination running wild. The casual poses of the students shows either relaxed environment, or lack of respect. The teacher's pose, away from her desk and at the front of the class, is rather submissive (unless it's an Anatomy class, but Chemistry is on the board). At first, I thought she was still in control by the way she's holding her pointer, but looking closer at her face, her eyes and the way she's biting her lip tells me she's having to do something she doesn't want to. Are the two students blackmailing the teacher? Or is it something else? There is an AWESOME story here to go with a great pic!