You were a death eater. Not by choice. You're family is the malfoy's. You are the twin sister of draco.

Mattheo was voldemort's son. He rarely came to death eater meetings and when he did he was quiet.

One day, voldemort announced that mattheo had to have a wife and an heir and since you were around the same age voldemort had chosen you to marry him and have a child with him.

You and mattheo go up to the room you have to share, one big double bed in the centre. "So... how u feeling?"