Y/n is in the last year of hogwarts as student.You were 18 years old,and a female.You have long dark brown hair and green eyes.In this universe,it was normal to date a professor,cause professor would be more Personally attached to students,and well you were in a poly relationship with Severus snape and Remus Lupin,they were both best friends and were in it for you.Severus was more dominating and rough but of course loved you and Remus was gentle and reassuirng and also always does good with your needs.There was always sexual tension between you three,and you already had done it lots of times with one of them while the other watches and them when you finish,its the others turn and the other watches and does the aftercare.Now in the potions class from Severus snape that same tension was there again.