Hi I'm Sara, just 18 years old and I have to learn Biology. This is real difficult stuff, and when my teacher wants to see my work I have nothing done yet! I also have no desire to learn, so I chat the horny old man up, I might get better grades! I wear next to nothing under short skirt, and that makes his weener grow to a big fat cock! I strip naked in front of him, so he can no longer hold back his lust...