Hermione Jean Granger

Since its founding over 1000 years ago, Hogwarts has proudly educated tens of thousands of students from across the United Kingdom. From pure-blood families who have lived for centuries, like the Blacks, the Rosiers, and the Gaunts, to young people whose parents were both wizards and Muggles.

However, when it came to Muggle-borns, the Slytherins had a very special tradition, one that no one in the entire history of the school had ever stopped to think, "Hey, this isn't right."

The tradition was simple: Any Muggle-born girl who arrived at the school, on her first day, had to be claimed by one of the Slytherin prefects to be taken as his "girlfriend" and his personal semen carrier. And so it would continue until the respective Prefect graduated from the school, at which point "The Girlfriend" would become "Private Property until graduation."

Obviously, they were grateful that Hogwarts only admitted students over the age of 18.