Yes, Sirs (Book 1 of Desire's Den)

"You were ours from the second we saw you," he stated as if I didn't have a choice in it, and the truth was, I didn't need to because he was right. I was theirs, but what they didn't know was that they were mine too. ...

Harry Potter's Twin Sister

[COMPLETED] You've all heard the story of Harry James Potter, the boy-who-lived. But what if he had a twin? Melody Potter is the twin sister of Harry Potter, though apart from the lightning-bolt scars on their foreheads, they couldn't be any more different. Follow the twins though the most eventful first year at Hogwa...