One plotline could be that they discover their sibling bond through a hidden family secret. Maybe a magical object reveals their connection. Another could be that they start to protect each other from the dark forces in the wizarding world despite their initial differences. For example, when Draco is forced to do Voldemort's bidding, Harry, as his new - found brother, tries to save him from making a huge mistake.
A great plotline is that they have to work together to solve a mystery related to their family. This could involve delving into their family history and finding out that there are certain powers or responsibilities that come with their new - found sibling bond. They might also have to face the reactions of their friends and the wizarding community, which could be full of shock and disbelief.
Well, they could start to develop a new relationship where they learn from each other. Draco could teach Harry about the pure - blood wizarding traditions in a more positive light, and Harry could show Draco the value of friendship and loyalty among all wizards regardless of blood status. Their sibling bond could be a catalyst for change in the entire Hogwarts environment, leading to a more inclusive and united school.
For Harry, it might make him more understanding of the Slytherin side. He could become less quick to judge Draco and other Slytherins. For Draco, the bond could make him less prejudiced towards Harry and Gryffindors. He might start to see the good in the values they uphold.
One possible plotline could be that Harry confesses his long - hidden feelings of friendship. Maybe after years of rivalry, he realizes Draco has a different side and he wants to start anew. He might confess in a moment of great danger, like when they are both facing a common enemy. This confession could lead to an uneasy alliance at first, as Draco is shocked but then slowly warms up to the idea of a real friendship with Harry.
A popular one is 'The Unbreakable Sibling Bond: Harry and Hermione'. In this fanfic, their bond is tested in many ways. It starts with small things like sharing study tips and then progresses to more serious matters like protecting each other from dark forces. The author does a great job of showing how their relationship could be like that of siblings, with love, loyalty, and a bit of sibling rivalry at times.
One possible plotline could be Harry struggling to hide his Tourettes symptoms at Hogwarts in the beginning. He might be afraid of being judged by his classmates. For example, during a Potions class, his tics could cause him to accidentally add the wrong ingredient, leading to a minor magical mishap. Another plotline could involve Harry using his magical abilities to find a way to manage his Tourettes better. He could go on a quest to find a rare magical herb or spell that helps him control his tics. Also, his friends like Hermione and Ron could play a big role in supporting him, learning about Tourettes, and standing up for him when others are unkind.
In a fanfiction about Harry Potter having diabetes, there could be a plot where Harry discovers a new type of magic that is related to his condition. Maybe he finds that certain spells can help him better manage his blood sugar levels. His relationship with the Hogwarts staff could also be explored. For example, Madam Pomfrey might be at a loss at first as she's used to dealing with more typical wizarding ailments. But then she works with Harry to come up with a plan to keep his diabetes in check. This could also lead to a greater understanding of muggle diseases in the wizarding community.
One interesting plotline could be that they discover their twin relationship early on and try to keep it a secret from everyone at Hogwarts. They might secretly help each other out in classes and with their rivalries against other houses.
A great plotline might involve a magical competition where Draco, Blaise, and Harry are all forced to compete. As they face various challenges, they start to understand each other better. For example, they realize that they all have the same fears about the future of the wizarding world. It could also be a plotline where they are all transported to an alternate dimension and have to rely on each other to get back home.
One interesting plotline could be Harry and Draco being deaged and having to rely on each other in a world that seems new to them again. They might form an unexpected friendship as they don't have the pre - conceived notions from their older selves. For example, they could team up to solve a mystery in Hogwarts that only they, with their combined knowledge from before, can figure out.
Well, in some 'Draco Adopts Harry' fanfictions, a great plotline is how Draco overcomes his past enmity towards Harry. He starts to see Harry as a person in need rather than an enemy. There could be a plot where they work together to uncover secrets about Harry's past that Dumbledore might have hidden. And then, Draco has to protect Harry from those who don't want the truth to come out.
One common plotline is a magical duel over a school competition. Maybe it's for the House Cup, and their fight gets intense as they both use their unique spells. For example, Harry might use his Patronus charm while Draco counters with some dark - arts - inspired hexes.