The development of Severus Snape as a father figure in fanfiction is a multi - faceted process. It can be related to his own growth as a character. Maybe he realizes he has a chance to be what he didn't have - a positive male role model. Fanfic writers may also use his relationship with the Potters as a starting point. If he's a father figure to a Potter - related character, his complex feelings towards James and Lily play a part. He could be trying to make up for past mistakes or trying to ensure that the new generation doesn't face the same tragedies he did.
In fanfiction, Severus Snape can be a very complex father figure. He often brings his own experiences of being bullied and his deep knowledge of magic into the role. Some fanfictions show him taking in an orphaned student, for example. He might be strict like he was as a teacher, but with a hidden layer of protectiveness. His actions are often driven by his past traumas and his sense of loyalty, which in a father - figure context means he's dedicated to guiding and shielding the young character.
Magic could play a role. There could be a magical spell or potion that was involved in Hermione's conception that links her to Snape. For example, a potion that alters memories and relationships. This would make for a very interesting and complex backstory in the fanfiction. Snape might not even be aware that he is Hermione's father at first, and when he discovers it, his whole view of her would change. He would have to deal with his feelings of protectiveness and his past actions towards her in Hogwarts.
In some fanfictions, Severus Snape being Harry Potter's father is a radical but interesting concept. It often involves re - imagining the relationship between Lily and Snape. Maybe there was a hidden, deeper connection between them that led to Harry's birth. This changes the whole dynamic of the story as Snape would then have a more personal stake in Harry's life from the start.
For Snape, his character could be developed further by showing his reactions to Emily's presence. He could gradually open up more of his softer side, which was mostly hidden. For example, he might start to share his memories of Lily Potter with Emily as he begins to trust her.
Realistically, their relationship could develop through a series of events that force them to rely on each other. For instance, if Hermione were to get into trouble with some dark magic experiments (maybe trying to replicate some of Snape's more advanced potions), Snape would be the only one who could help her. He would be initially angry but then realizes her potential. As for Hermione, she could start to see Snape not just as a strict teacher but as a person with his own traumas. She could offer her friendship in a very understated way, like leaving him a book she thought he might like in his office. Over time, through these small gestures and shared experiences, their relationship could develop into something more complex and interesting.
In many OC (Original Character) fanfictions, Young Severus Snape's character development can be quite diverse. Some fanfictions might focus on his difficult childhood and how it shapes his personality. For example, his experiences with his family and the bullying he endures could be explored in more depth. The OC could play a role in either exacerbating or alleviating his hardships, which in turn affects how his character grows.
A possible plot could involve Hermione inheriting Snape's potions skills in an even more profound way. She could use her combined intelligence from her mother and potions talent from Snape to create new spells or potions. Snape, as her father, would be torn between his loyalty to the Dark Lord (in some versions of the story) and protecting his daughter from the chaos of the wizarding war.
His role becomes much more mysterious. He is no longer just a potions master and spy. He now has a connection to an entirely different realm. His actions are not only about the wizarding world's affairs but also about his father Hades' will. He might be involved in preventing some sort of underworld - related catastrophe from happening in the wizarding world.
The raven familiar can be quite significant. It might provide emotional support or play a key role in magical tasks.
In fanfiction, anything can be reimagined. It could be possible through creative plot devices like a hidden relationship between Snape and Lily Potter before she was with James. Maybe there was a secret encounter that led to Harry's conception, and the truth was hidden all along.