An Ideal Grace (слэш)

Erik Lehnsherr is a visiting professor at Columbia University, as well as an acclaimed and award winning poet. Charles Xavier is a lead researcher with the Genetics Department who is well on his way to tenure. But what happens when Charles has to cancel a class because half his students abandon him in favour of a mysterious new English Lit professor? Naturally he ends up sitting in in the class, where Professor Lehnsherr mistakes him for a student. It's really too bad Erik has such a strict policy against dating students. It's also too bad Erik doesn't seem to know how to use Google.