One possible story could be one where Snape slaps Hermione in a moment of extreme frustration during a potions class when she makes a big mistake that endangers the whole class. However, this act then leads to a series of events where they both have to work together to make amends and understand each other better.
There might be a fanfiction where Snape slaps Hermione because he misinterprets her actions as being disrespectful towards him. But later on, Hermione discovers that Snape has a hidden past trauma that made him react that way, and she tries to help him heal. It could be a story about forgiveness and growth.
One possible story could be about Snape losing his temper after Harry makes a big mistake in potions class and slaps him. Then it might explore Harry's shock and anger, leading to a tense relationship between them that has to be mended over time.
One popular story might be where Hermione uses her intelligence to engage Snape in witty banter that could be seen as flirting. For example, she might cleverly challenge his knowledge in potions in a flirty way during a class or in the dungeons.
One interesting fanfiction could be where Snape discovers Hermione's hidden potential in a different area of magic not explored in the original books. For example, in a story, Snape might take Hermione under his wing to study ancient and dark magics that are on the verge of being lost. This could lead to a series of adventures where they break traditional Hogwarts rules together in the pursuit of knowledge.
One popular one might be 'The Moment of Impact' where the slap is a turning point in their relationship. It delves into the emotions and misunderstandings that led to that moment.
Often, it starts with the slapping incident which creates immediate conflict. Then, Hermione might be outraged and seek justice or revenge, which drives the plot forward. For example, she could go to Dumbledore about it.
A common plotline is an alternate universe where Snape is not as bitter and Hermione befriends him more easily. They could be involved in a battle against a new dark force, and their combined intelligence and magic powers are crucial for victory. Also, there could be a plot where Hermione accidentally enters Snape's mind through some experimental magic and discovers his deepest secrets, which then changes their relationship.
In some fanfiction, the son might have a special ability that combines Snape's Occlumency skills and Hermione's quick - thinking. He could use this ability to solve mysteries at Hogwarts. For instance, there could be a mystery surrounding an old magical artifact, and he uses his combined skills to figure out its purpose and protect it from those who would misuse it.
One possible storyline could be that in a hidden corner of Hogwarts, Snape discovers Hermione's secret project related to advanced potions. This could lead to a begrudging respect as he sees her intelligence and determination, similar to how he respected Lily. Another could be Hermione stumbling upon Snape in a corner where he is reminiscing about his past, and she gains a new understanding of his character.
One interesting plot could be that in a post - war Hogwarts, Hermione discovers a hidden side of Snape through his old potions notes. She becomes intrigued and starts to work on some of his unfinished experiments, which leads to a series of adventures where she gradually understands his complex character better. This could involve her having to face some of the same challenges he did, like dealing with the dark arts influence in certain potions.
One interesting plotline could be Hermione's struggle to adjust to living with Snape. She's used to the warm and inclusive environment of Gryffindor, and Snape's dark and brooding personality makes it a big change for her. Another could be Snape seeing Hermione's potential not just as a student but as a daughter figure, and he starts to teach her advanced magic privately, which in turn helps Hermione to solve some of the school's mysteries.