In the fanfic, it could be that Snape has been secretly in love with Harry for a long time. He has been suppressing his feelings all this while. But then, when Harry shows signs of understanding Snape better, like when Harry starts to see Snape's actions in the past as more of a protection than a vendetta, Snape might gather the courage to propose. This would be a huge shift in their relationship and would likely cause a stir in the wizarding world, with friends and foes alike having different reactions.
Perhaps in the fanfic, there is some sort of magic that binds their fates together. Snape might discover this connection and, despite their past differences and his own reserved nature, he decides to propose to Harry as a way to accept this newfound bond. It could also involve Snape trying to make amends for his past actions towards Harry by offering this ultimate commitment.
The fanfic could be about a time - travel aspect of Castiel's proposal. He realizes that in order to have a future with his beloved, he needs to go back in time to fix some things. So, he travels through different timelines, experiencing various versions of their relationship. Along the way, he discovers what is truly important in their connection. When he finally comes back to the present, he proposes with a newfound understanding and depth of love, making the proposal a very profound moment that ties together all the different timelines and experiences they've had or could have had.
Hermione would probably be shocked at first. She is a rational person, and this goes against the normal relationship dynamics she is used to. But then she might try to understand it from a logical perspective, thinking about how their relationship has developed over time. Ron, on the other hand, would likely be more vocal in his disbelief and might even make some jokes about it at first.
One possible plot is that Bakugou has been secretly in love with Deku for a long time. He observes Deku's kindness and growth, and it makes his heart flutter. He decides to propose when they are alone one day. He might start by reminiscing about their journey together, from being rivals to becoming something more, and then pop the question.
One possible plot could be that they discover they are brothers early on in Harry's time at Hogwarts. Snape then has to balance his duties as a teacher and his newfound family connection. He tries to protect Harry in secret from the threats within the school, like Malfoy and his cronies.
One possibility could be that Dumbledore arranges for Harry to live with Snape for protection. Snape, though reluctant at first, gradually discovers Harry's hidden strengths and they form an unlikely bond. Harry might learn more about his mother from Snape, which could lead to a deeper understanding between them.
Well, it could be that Snape is wrongly accused of a great crime in this fanfic, and in the heat of the moment, someone attempts to kill him. Maybe it's a misdirected act of revenge by someone who thinks Snape is behind a series of dark events at Hogwarts. But of course, the truth might be far more complex and intertwined with the overall politics and secrets of the wizarding world.
Perhaps Tom Snape is a long - lost relative of Harry's father. In the fanfic, they meet by chance in the wizarding world outside of Hogwarts. They initially have some misunderstandings due to their different personalities and family backgrounds. But as they face some common enemies, like a group of dark wizards, they gradually form a bond and work together to protect the wizarding world. And along the way, they discover secrets about their family and Hogwarts that were previously unknown.
Well, it could be about Snape feeling a sense of duty. Maybe after Harry loses his sight in a battle against the Dark Arts, Snape, despite their past differences, steps in. He might start by teaching Harry new ways to navigate Hogwarts using magic that doesn't rely on sight, like advanced sonar - like spells.
One possible plot could be that there is a magical accident or spell that binds Harry to Snape in this 'pet - like' relationship. Snape is initially reluctant but then starts to see the potential in having Harry under his control. He could use Harry to further his own goals, whether it's to gain power within Hogwarts or to take revenge on his enemies. Meanwhile, Harry has to figure out how to reverse the situation while dealing with the new and uncomfortable dynamic between him and Snape. It would be a very different take on the Harry Potter story, full of twists and turns as Harry tries to regain his freedom and Snape tries to maintain his hold on him.
In the fanfic, it could be that Snape is caught in a political struggle within the wizarding world. Harry, who is on the side of the 'good' political faction, uncovers Snape's involvement in some underhanded schemes for the opposing side. As a result, he has no choice but to get Snape arrested to protect the safety and stability of the wizarding community.