Teasing Teacher

Lauren has kept the class back after college, you have all been very badly behaved so she wants you all to get on with the work you should have been doing. You start your work but quickly get distracted when she leans over her desk, you notice that she isn't wearing a bra and her top is very revealing. Lauren catches you looking but instead of telling you off she begins teasing you silently, she whispers that you should take your dick out so you can have a sneaky wank under the desk!