Set many years before Harry Potter ever came to Hogwarts, but after the first fall of Voldemort.
Two boys, one Slytherin, (you may choose the house of the other) are now entering into their sixth year at Hogwarts. They may know each other, but not well- until one day they meet, and one decides he wants the other for his own.
Name: Kale Romanov
Hair colour: Black
Eye colour: Green
Personality in a word: rebellious
Kale always has a comeback for everything. He's sooner to start a duel than walk away from one, and has no problems getting into a fight with someone he disagrees with. He is gay, but pretends he isn't- goes out with many girls, and would even lie to himself about his sexuality before admitting it.
The relationship at the start of this would be rocky at best- eventually Kale will have to admit his own feelings, but he'll resist it as hard as he resists everything else.
I don't have a preference as to where this starts or goes- I'm open to suggestions, but if you have absolutely no idea what to do with the plot I will be able to steer it in some sort of direction. :)