Voldemort manages to enslave Harry Potter to three Slytherin girls. Some Gryffindors fight it and join the Slytherins. By saving him from enslavement, they all need to 'rape' Harry.
The Second War is on, Harry Potter is involved, but so is someone known as the Heir of Gryffindor. (YEAR 6 AU)
Harry is captured by Voldemort, but manages to escape with some unexpected help. Now he just has to deal with the consequences.