A possible plot is that Luna discovers Draco's secret struggle with his family's dark past. She decides to help him break free from the expectations placed on him by his family. This could involve Luna introducing Draco to a more carefree and accepting way of life, away from the pure - blood mania. They could start a sort of underground club at Hogwarts for students who want to break free from the traditional house rivalries.
One idea could be that Draco and Luna are paired up for a magical project at Hogwarts. Draco is initially dismissive of Luna's eccentric ways, but as they work together, he starts to see the beauty in her unique perspective. Another plot could involve them getting lost in the Forbidden Forest together and having to rely on each other's skills to get out. Maybe Luna's knowledge of magical creatures and Draco's Slytherin cunning combine to make an exciting adventure.
Perhaps there is a prophecy that involves both Luna and Draco as siblings. They are initially unaware of it, but as events unfold, they start to piece it together. They have to protect each other from dark forces that want to use them for their own gain. Along the way, they also explore their family history and find out about their parents' past, which helps them understand their own identities better.
One idea could be that Lincoln and Luna team up to start a music project. Lincoln discovers he has a hidden talent for writing lyrics and Luna helps him bring those lyrics to life with her music skills.
One idea could be that Draco and Luna are paired for a special project at Hogwarts. They start off disliking each other but gradually discover they have more in common than they thought. For example, they both feel a bit like outsiders in their own ways. Draco with his family's dark past and Luna with her unique and often misunderstood personality.
One plot idea could be that Lily, Luna, and a character named Lemon discover a hidden spell in the Forbidden Forest that has a connection to Harry Potter's past. They embark on a journey to understand the spell's significance and how it might affect the wizarding world's future.
One idea could be that they discover their pregnancy unexpectedly. Maybe they were friends who gradually fell in love and now have to deal with the new life coming. They might face challenges from their different backgrounds. Draco from a more traditional pure - blood family and Luna with her unique, free - spirited ways. Their friends could have mixed reactions, some being supportive while others being skeptical.
There might be a fanfiction where Luna and Draco are forced to work on a school project together. At first, they clash due to their different backgrounds. But as they get to know each other better, they start to see the good in one another. Draco learns from Luna's acceptance of all things strange, and Luna sees that Draco isn't all bad. It could be a story of growth and unexpected friendship.
Well, one interesting plot point could be how Luna and Draco deal with their family's expectations. Since they are siblings in this fanfiction, they might have different views on their pure - blood heritage. Maybe Luna tries to be more open - minded while Draco is more traditional at first, and their relationship evolves as they learn from each other.
Well, perhaps in the fanfiction, Harry and Luna are both involved in a prophecy that brings a group of people around them. These people start to admire and fall in love with them as they witness Harry's courage and Luna's unique wisdom. They all go on a quest to defeat a new dark force, and along the way, the harem - like relationships start to form.
One idea could be that they bond over their unique experiences with the wizarding world's strange creatures. For example, they might go on a secret mission to find a rare and endangered magical beast, which deepens their relationship.
One idea could be them exploring different magical creatures together as a married couple. They might go on a journey to find a rare and endangered magical creature and work towards its conservation.