My Brother's Enemy (Harry Potter One Shot)

I bet most people never knew Draco Malfoy had a twin sister. Well he does. And she's coming to Hogwarts. Doretha Malfoy knew who to befried and who to avoid. Draco was her big brother and her best friend. On the train ride to school though, she bumps into the famous Harry Potter. And he steals her heart from one look. Dorothy's chrush begins and it spells bad news. He's her brother enemy! He hated her and her family! So she keeps her family secret and lies to him. But is it truly better she lied? Will her secret be spilled and have her exsposed as a big liar?