Wank For Your Teacher

You have stayed behind after the rest of the college class has left to ask Sophia to check your assignment that is due in tomorrow, she tells you that it is a bit late but she will check it over. As she does you notice that she isn't wearing a bra and you can see down her blouse, Sophia tells you that she knows what you are up to and you should take your dick out and have a wank if you want to.