Bad college girl or a excellent deep-throater

Emily is a edible and clever-looking dark haired in glasses who claims to inspect highly rock-hard but who fails to pass a ordinary test. Sure, her professor is highly unpleased with her efforts because he believes she should work even firmer or find another way of passing a test and getting her education. Fortunately, Emily is a brainy college girl and she understands what a wild schoolteacher needs to be sated with her.