Well, they could team up to solve a mystery at Slughorn's party. Maybe there's a strange potion that's acting oddly, and Harry and Hermione put their heads together. They might also use this opportunity to introduce each other to different people. For example, Hermione could introduce Harry to some of the more studious students she knows, while Harry could introduce Hermione to some of his Quidditch mates.
In some fanfictions, they might share a secret dance. They could have a deep conversation away from the crowd, perhaps about their future plans or their concerns regarding Voldemort. It could also be that they discover a new magical object together at the party and start to research it.
In fanfiction, their interaction could be more complex. Harry could be feeling a bit out of place at the party, being more used to the Gryffindor common room. Hermione, being the empathetic friend, tries to make him feel more comfortable. She might drag him into conversations with various professors and students, all the while whispering little bits of information or advice in his ear. They could also share a moment of laughter when something funny happens, like when Neville trips over his own feet while trying to dance.
In some fanfictions, they might have deep conversations about their future and the challenges ahead. They could also share their fears and insecurities, strengthening their bond as friends.
Well, in such a fanfiction, Hermione might visit Harry to check on his well - being. Maybe she brings him some books from the library to cheer him up during a tough time at Hogwarts.
There are so many things that could occur. For instance, Harry's parents could be curious about Hermione's relationship with their son. They might ask her about her family and her magical abilities. Hermione, on the other hand, could be eager to learn from them about Harry's early life. It could be a very emotional encounter, with lots of reminiscing about Harry as a baby and how much they missed seeing him grow up. And they might also share some secrets about the Potter family that could help Hermione and Harry in their later battles.
In this fanfiction, Harry might be nervous at first. He could be worried about making a good impression on Hermione's family. Maybe he brings a special gift, like a magical book he found. And he might be surprised by how warm and welcoming they are.
Well, they could meet by chance. Scabior might recognize Hermione despite her attempts to blend in. He could then try to capture her to gain favor with the Death Eaters. But Hermione would surely put up a fight. She might use some spells she learned at Hogwarts to fend him off.
Well, they might face a lot of new challenges in Forks. Maybe they have to adapt to the different climate and the local culture. And they could encounter new magical or non - magical creatures there.
Well, in the 'Harry and Hermione family reunion' fanfiction, it could be that they are reuniting after a long time apart due to some sort of magical crisis that had separated them. Their families might be a bit hesitant at first, but as they start sharing their experiences and the strong bond between Harry and Hermione becomes evident, everyone warms up. There could be magical displays for the kids, and they all might plan for future joint adventures or just simple family outings.
Perhaps when Harry goes to Hermione's house, they end up having a deep conversation about their future in the wizarding world. They could discuss their plans for after Hogwarts, like Hermione's dreams of reforming the Ministry of Magic and Harry's thoughts on teaching Defense Against the Dark Arts at Hogwarts. They might also share some personal feelings they've been hiding from each other.
Perhaps it could be a comical situation. Hermione could make a sarcastic comment like 'Really, Harry? Is this some new form of showing off?' and then they both end up laughing about it, and it becomes just a light - hearted moment in the fanfiction. It could also be that Hermione is so shocked that she freezes for a moment and Harry has to quickly cover up, feeling embarrassed.