The plot could start with a chance encounter that sparks something between them. Then, they might have to overcome magical obstacles and their own insecurities to make their love work. Maybe there's a big final battle where their love gives them the strength to win.
The impact she has on the plot is multi - faceted. First, she could be the one to make connections between different magical phenomena and scientific concepts. This might lead to new alliances or conflicts as some in the wizarding world embrace her ideas while others resist. Also, her physicist perspective could open up new areas for exploration in the story, like unearthing secrets about the origin of magic through scientific means, which would completely shift the direction of the plot.
She would have a very close relationship with them. Since she is Lily's twin, James would be her brother - in - law. She would be like Harry's aunt. They would have likely grown up together, and Hermione would have been part of the family. She would have been there during important family moments, and her relationship with James and Lily would be based on both family ties and mutual respect for each other's magical abilities.
One interesting plot twist could be that Hermione is under a love spell, but Harry doesn't know it. He falls in love with her thinking it's real, and when he discovers the spell, he has to decide if his feelings are still real without it. Another twist could be that they time - travel back to a time when they were younger, and they see their past selves and have to be careful not to change the future while also exploring their new - found love. Or perhaps, a prophecy states that their love will either save or destroy the wizarding world, adding a huge moral dilemma to their relationship.
One idea could be that during a dangerous adventure, Harry realizes his true feelings for Hermione when she risks her life to save him. He then starts to court her in a very Harry - like way, with shy glances and small, kind gestures.
One possible plot could be that after the defeat of Voldemort, Harry and Hermione realize their deep bond which has grown stronger over the years of fighting together. They start a relationship secretly at first. Then, Hermione discovers she is pregnant. Their friends are initially shocked but gradually come to accept it. They face challenges in raising the baby in the wizarding world, with all the expectations and the ever - present threat of dark forces still lurking.
They'd probably have a very interesting and complex family dynamic. Severus would be the strict but fair father figure. Harry would be the one with a lot of pent - up emotions from his past, but also a strong sense of justice. Draco would be the one trying to find his place between his old pure - blood values and the new values Severus would teach. Hermione would be the voice of reason and the one always pushing for knowledge. There would be a lot of bickering at first, especially between Harry and Draco, but over time they would grow to care for each other like siblings.
There could also be a mentoring - type relationship. Hermione, being very knowledgeable, could teach Fred about more complex magical theories. In return, Fred could show Hermione how to relax and have more fun, and introduce her to some of the more light - hearted aspects of the wizarding world that she might not have experienced much before.
The plot could start with Harry realizing he has deeper feelings for Hermione than just friendship. He might start spending more time with her, which causes tension between him and Ron. Eventually, he could confess his feelings to Hermione, and she might be conflicted because of her relationship with Ron.
If Harry and Hermione become a couple in fanfiction, it could lead to a more in - depth exploration of their individual characters. Hermione would be more relaxed as she has Harry's love and support, and she might be more open to trying new things outside of her usual strict study routine. Harry, on the other hand, would become more confident in his decision - making. They would probably have some really sweet moments together, like late - night walks around the Hogwarts grounds talking about their future and how they can use their magic to make the world a better place.
Well, it would be a very different kind of relationship. They are both very intelligent and brave, so they would probably have a relationship based on mutual respect for their knowledge and skills. But it would also be complex because they are such good friends already. Maybe it would start with them realizing they have a deeper connection than just friendship during one of their many adventures.