In some 'Harry and Hermione have twins' fanfiction, a plotline could be about the twins' discovery of a long - lost magical secret. This could be related to their family history or something that was hidden in the wizarding world for centuries. The twins' journey to uncover this secret could involve adventures all over the wizarding world, from the Forbidden Forest to the far - flung corners of other magical lands. Along the way, they learn more about themselves and their place in the wizarding world.
A plotline could involve the relationship between Harry, Hermione, and their friends in the context of having twins. Their friends like Ron and Ginny could be very involved in the twins' lives. Ron might be the fun uncle who always brings the kids interesting magical gadgets, and Ginny could be the aunt who teaches them Quidditch. Also, the twins' education at Hogwarts could be a major plotline. They might face different challenges compared to other students due to their parents' fame.
Maybe in this fanfiction, the fact that they are the Riddle Twins causes a stir in the wizarding community. Some people might fear them because of their connection to Voldemort, while others believe they could be the key to finally bringing true peace. Harry and Hermione then have to deal with the prejudice and the high expectations placed on them. They might have to prove that they are not like Voldemort and that their heritage can be used for good.
Maybe the twins get into some sort of trouble at Hogwarts. They could accidentally release a magical creature that causes chaos in the school. Harry and Ginny then have to step in and help their children deal with the consequences, which also shows the family dynamic between them.
One interesting plotline could be the three of them working together on a complex magical project at Hogwarts. Maybe they're trying to create a new spell or potion that could revolutionize the wizarding world.
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 possible plotline is their different magical abilities. Percy might be really good at transfiguration and charms, while Harry has his natural talent for defense against the dark arts. They could compete in a friendly way, but also learn from each other. For instance, Percy could teach Harry some advanced transfiguration spells, and Harry could show Percy some new defense techniques he learned from his experiences.
One interesting plotline could be the Carrow twins trying to manipulate Harry into joining their dark deeds, but Harry resists and tries to turn them to the good side. Another could be Harry forming an unexpected friendship with one of the twins that causes a rift between the twins themselves.
Perhaps a plotline where they form a special bond while facing a common enemy. They might have to work together to outwit a dark wizard or a tricky magical creature. It could involve using their unique skills and teamwork to overcome challenges.
One interesting plotline could be the twins getting involved in a magical mystery that Harry also stumbles upon. Maybe they discover a hidden spell together and have to figure out how to use it properly.
One interesting plotline could be how they deal with the reactions of their friends. For example, Hermione might be very confused at first but then start to notice the small differences between them that no one else does. Another could be their family dynamics. How would the Malfoys and the Potters react to the discovery? It would surely cause a stir in both families.
One possible plotline could be the twins competing for Harry's affection in a friendly yet intense way. They might use their unique pranks and charms to win him over.