MayEliteGirl

When James and Lily Potter adopt Tom Riddle, he doesn't expect them to have a daughter his age too, Harry. He's even more shocked (but not opposed) to how they live so promiscuously. At Hogwarts, he learns that the wizarding world is much more lax with this type of behaviour as sex contributes to the overall strength of magic. While Harry is simply trying to live day-to-day, her annoying adopted brother won't stop harassing her with plans to take over the wizarding world.