Well, perhaps Harry is sold to Snape as a result of a debt his relatives owe in the wizarding world. Snape initially resents having to take Harry in but gradually discovers things about Harry that change his view. Or maybe it's a ploy by Voldemort to get closer to Harry, and Snape has to figure out how to keep Harry safe while also seeming to be on Voldemort's side in this new arrangement.
One possible plotline could be Harry being sold due to some dark magic plot against him. Snape then has to deal with this unexpected situation and protect Harry from further harm. Another could be that it's a part of a deal to save the wizarding world, and Snape and Harry must learn to work together in this strange new dynamic.
Another plotline could be that there is a spell or a magical occurrence that forces Snape and Harry to be close to each other. Initially resistant, Snape eventually gives in and cuddles Harry. This could then be the start of a journey where they learn to trust and rely on each other more.
Well, one possible plotline could be that Snape is examining Harry for some sort of magical ability or deficiency that he suspects. Maybe he's trying to figure out why Harry has such an affinity for certain spells. Another could be that Snape is examining Harry as part of a school investigation, perhaps related to some mischief that's been going on. And it could also be that Snape is secretly examining Harry to protect him from some hidden danger in the wizarding world.
A plotline might involve a dark magic situation where Snape has been cursed and Harry, as his donor, is the only hope to break the curse. As Harry gets involved, he uncovers secrets about Snape's past that change his perception of him. Meanwhile, Snape has to deal with his pride and accept help from someone he has long disliked, leading to a complex emotional journey for both characters.
Well, it could start with a dream or a prophecy. Harry has a strange dream about Snape that he can't shake off. He starts to observe Snape more closely in real life and realizes that there's more to him than he thought. Meanwhile, Snape notices Harry's change in behavior towards him. As they interact more, they find common ground in their love for magic and their shared experiences of loss. This mutual understanding could lead to a situation where Harry, driven by his new - found respect and affection, kisses Snape. It's a very different take on the relationship between the two characters compared to the original story.
One possible plotline could be Snape finding drunk Harry in the Hogwarts corridors. Snape, being the strict teacher, might initially be angry but then realizes Harry is in a vulnerable state. He could take Harry to his office to sober him up and in the process, they have a conversation that reveals some hidden feelings or understanding between them.
Perhaps Snape, in a moment of weakness or out of some deep - seated sense of responsibility, decides to protect Harry in an extreme way. He treats Harry like a pet in that he provides for all of Harry's needs but also restricts his freedom. This could lead to a lot of internal conflict for Harry, who is used to being independent. Meanwhile, Snape has to deal with the other characters in the wizarding world who might not understand his motives for treating Harry this way.
One possible plotline could be that Harry discovers he is in this unexpected mpreg situation and is initially terrified and confused. Snape, despite their past differences, steps in to help because he realizes Harry has no one else to turn to. Snape could use his knowledge of potions to ease Harry's physical discomfort during the pregnancy.
Perhaps in some 'harry marries snape fanfiction', there could be a magical accident that binds their fates together. At first, they resist the connection, but as they get to know each other better, they find common ground and fall in love, leading to marriage. This could involve a lot of emotional turmoil and self - discovery for both characters.
In some 'Snape slave to Harry fanfiction', the plot might start with a prophecy or a magical bargain. Maybe a seer predicted that only with Snape as Harry's servant could a great evil be defeated. So, Snape, bound by this fate, has to follow Harry's commands. Along the way, they face many challenges together. Harry has to deal with the power imbalance and Snape has to struggle with his pride. Their relationship evolves from one of forced servitude to a more complex bond of respect and cooperation as they fight against the forces of darkness.
One possible plotline could be that Snape accidentally discovers Harry is extremely ticklish and uses it as a form of mild punishment when Harry misbehaves in Potions class. For instance, if Harry forgets an ingredient or causes an explosion.