In the fanfiction, Hermione spending time with Snape might also involve her trying to understand his past better. She could be the one person who finally gets him to open up about his relationship with Lily Potter. This could create an unexpected bond between them, as Hermione realizes that Snape is more complex and tragic than she initially thought.
Well, in some fanfictions, Snape might start to see Harry in a different light. Maybe he begins to teach Harry some advanced potions techniques secretly during the summer. He could also grudgingly share some of his knowledge about the Dark Arts in a more controlled way, just to make sure Harry is well - equipped to face future threats.
A plot where they are forced to team up to solve a mystery within Hogwarts. It could be a mystery related to the Chamber of Secrets or some other hidden part of the castle. During this time, they have to rely on each other's strengths, and Hermione starts to see Snape as an ally rather than just a strict teacher.
It could also be a really awkward experience. Snape is used to being strict and cold towards Harry at school. During the break, he might not know how to act around Harry without the school's formal structure. Harry might feel out of place too, but they could slowly build a strange sort of friendship or at least a mutual respect as they are forced to spend time together.
Well, one possibility is that they could have an intense conversation. Maybe Hermione discovers a side of Snape she never knew. For example, Snape could reveal some of his past traumas or secrets that make Hermione see him in a new light. It could be a moment of mutual understanding between two characters who didn't get along well in the original story.
Well, Snape could force Hermione to participate in a wizarding duel against her will. In fanfiction, this could be a way for Snape to test her skills or perhaps punish her for something he believes she has done wrong. Hermione would be in a tough situation as she is a rule - abiding student, but being forced into a duel would make her have to think on her feet and use her magic in new and unexpected ways.
In this fanfiction setting, Snape might be at Grimmauld Place on some secret mission. Hermione, being the inquisitive witch she is, could stumble upon him. There could be a tense moment at first, but then they realize they need to cooperate. Snape could teach Hermione some advanced magic that she wouldn't learn at Hogwarts, and in return, Hermione could offer her unique perspective on the wizarding world. Their relationship could develop into an unlikely alliance, which would be really exciting to read about.
One possibility is that Hermione, with her intelligence and thirst for knowledge, might seek out Snape after the war to learn more about the Dark Arts defenses he knew so well. Maybe she wants to ensure that Hogwarts is never again vulnerable to such dark forces. Snape, initially reluctant, could be won over by Hermione's determination and respect for his skills.
Well, it could be that under the mistletoe, Hermione breaks through Snape's tough exterior. She might see a side of him that no one else has seen before. Maybe they share a magical moment, like a spell that only they can create together, which symbolizes a new connection between them.
There could be a plot where they are forced to work together on a project. Snape initially resents it, but as they collaborate, he sees Hermione's determination and begins to fall for her. However, he has to deal with the fact that she is a Gryffindor and he has his own reputation to uphold. This creates a lot of drama and tension in the story.
They could start off on bad terms, with Snape being his usual strict self and Hermione being defiant. But as the detention progresses, they might find common ground. For example, Snape could notice Hermione's talent for potions and start to give her some extra knowledge or tasks related to advanced potions. This could change their relationship from one of animosity to one of a grudging teacher - student respect.