Well, in such a fanfic, the story could develop in many ways. One possibility is that there would be a great deal of secrecy at first. Hermione might struggle with how to raise the child while keeping its paternity a secret from the wizarding world. The child could inherit Snape's intelligence and Hermione's determination, leading to some interesting adventures as the child grows up and discovers their own magical abilities.
The story might start with a shock for Hermione when she realizes she's pregnant with Snape's child. There could be a lot of inner turmoil for her. She would have to face the reactions of her friends, like Harry and Ron. Maybe the child has some unique magical traits that are a combination of Snape's potions expertise and Hermione's academic skills. As the child gets older, they might face discrimination due to Snape's controversial past, but also gain respect for his heroic deeds in the end.
It's possible that the child would have a special connection to the Dark Arts in a way that is different from Snape. Since Hermione has a strong moral compass, the child could use their understanding of the Dark Arts for good, like creating antidotes to dark magic curses. Also, the child could have a magical gift for memory - a combination of Snape's pensieve - like memory skills and Hermione's ability to remember vast amounts of knowledge.
Authors often start by highlighting their initial animosity. Snape's usual disdain for Gryffindors and Hermione's quick - witted comebacks can set the stage. Then, they might introduce a common goal, like saving Hogwarts from a new dark threat. This forces them to work together. As they interact more, they start to understand each other's motives. For example, Hermione might learn about Snape's past and his love for Lily, which makes her see him in a new light.
In this fanfiction scenario, their relationship would be a journey of discovery. Hermione, with her inquisitive nature, would start to dig deeper into Snape's past. She might find out about his unrequited love for Lily and understand his pain. Snape, on the other hand, would be exposed to Hermione's modern - thinking and her ideas about equality in the wizarding world. This exchange of ideas and emotions would be the foundation for their relationship development. They would have to overcome their initial differences, like Snape's cold exterior and Hermione's sometimes over - eagerness. But as they do, they would form a relationship based on mutual understanding and shared goals, such as improving Hogwarts or changing the wizarding society's views.
Snape's character could become more complex. He might start to incorporate some of Merlin's wisdom into his own actions. For example, Merlin was known for his ability to see the good in people, and Snape could start to do the same. Instead of just being bitter and resentful towards Harry, he could start to see Harry as a potential ally in a greater fight, much like Merlin saw the potential in the young knights of Camelot.
In the beginning, Hermione might be the one trying to make the best of the situation. She would try to communicate with Severus, but he would probably push her away. However, as they are forced to live together and share responsibilities, they would gradually open up. Maybe they would start having conversations about magic, books, and their past experiences. Slowly, a bond of mutual understanding would form, and their relationship would develop from one of hostility to something more like friendship, and eventually, it could turn into love.
Snape's personality would likely soften. He'd have to be more patient and understanding. Instead of just being the strict and often sarcastic Potions master, he'd become more nurturing. He'd still have his sharp edges, but around Harry, he'd show more kindness and care as he takes on the role of a guardian.
Snape's character might develop more positively. Without the burden of his past mistakes and betrayals haunting him, he could be more confident. He might be more open to forming friendships, especially with Dumbledore. Their relationship could start on a more equal footing, leading to a more trusting bond.
Snape would likely become more confident in his place at Hogwarts. As the heir, he has a new - found sense of belonging that could soften his harsh exterior. He might be more open to helping students, especially those who show an interest in the history of Hogwarts.
At first, it might be a bit rocky. Hermione is very opinionated and Severus is, well, Severus. But as she grows, she could start to see past his prickly exterior. Maybe she discovers his hidden kindness through his actions towards her in the fanfiction.
In these fanfictions, their relationship often starts with suspicion. Hermione is wary of Snape due to his reputation, and Snape initially sees Hermione as just another student. But as he starts to help her, like when he gives her advice on how to deal with a particularly tricky magical creature in Care of Magical Creatures class, she begins to see a different side of him. Their relationship then slowly develops into a mutual respect as they work together on various tasks around Hogwarts.