Sophia Grace is really struggling to make the grade. When she meets with her professor during his office hours, she asks if there isn't any other way to pass the course. He offers to let her take an oral exam, to which she responds by dropping to her knees and starts sucking his cock. That wasn't what the professor had in mind, but once she's swallowed the tip of his dick and starts running her tongue along the shaft and tickling his balls with it, he determines that even though she doesn't get the subject, her grasp on his contents earns her a pass!