What would be the main plot points in a Harry befriend Bellatrix fanfic?

Well, one possibility is that Harry would be raised in a very different magical environment. Bellatrix is a Death Eater, so he might be exposed to dark magic teachings from a young age. But perhaps, deep down, Bellatrix could have some strange maternal feelings towards Harry and protect him from the other more extreme Death Eaters. This could lead to a really complex internal struggle for Harry as he grows up, having to reconcile his own sense of right and wrong with the values he's being taught in Bellatrix's care.

One possible plot twist could be that Harry, under Bellatrix's influence, becomes a much darker and more ruthless wizard. Bellatrix might train him in the Dark Arts, and he could end up being a sort of anti - hero. He might have a completely different view of the wizarding world and be at odds with his former friends from Hogwarts.

Well, in a 'Harry impregnates Bellatrix' fanfic, it might explore the chaos that would ensue in the wizarding world. Harry's friends would be horrified and confused. Bellatrix, being who she is, might have her own dark motives for allowing or even causing such a situation. It would be a very complex and disturbing story that would likely rewrite many established character traits and relationships in the 'Harry Potter' universe.

A plot might involve Harry being captured by Bellatrix. Instead of harming him immediately, she is intrigued by his power. She tries to break his spirit but Harry resists. Over time, through their power struggles and intense conversations, a strange connection forms between them that changes their relationship in unexpected ways.

The plot could revolve around Harry's struggle to fit in. Since he is a demigod raised by Bellatrix, he is likely to be an outcast in both the wizarding and demigod communities. The wizarding world may not understand his demigod powers and the demigod world may not accept him because of his connection to Bellatrix. He might have to go on a journey to find others like him or to find a place where he truly belongs. Along the way, he could face many challenges and enemies, both magical and perhaps related to his demigod status.

A great plot point would be the cultural clash. Harry Potter characters are used to a world where magic is somewhat hidden from Muggles, but Shadowhunters operate more in the open, among humans. How would Harry and his friends adapt to this new way of living? Additionally, the introduction of Shadowhunter creatures like werewolves and vampires into the Harry Potter universe could create some intense storylines. And what if the Horcruxes had some connection to the Shadowhunter world? Maybe they could be destroyed in a different way using Shadowhunter magic.

One possible plot point could be the initial meeting. Maybe Harry, in his 'godlike' state, stumbles upon Serafall's realm and they are instantly intrigued by each other. Another could be the challenges they face due to coming from different worlds, like cultural differences in their magical practices.

Another plot point is how they interact with the other characters. Bellatrix in Harry's body might have to fool his friends, and Harry in Bellatrix's body could try to manipulate the Death Eaters. This can lead to some really intense and cleverly written scenes, like when Harry tries to subtly change the Death Eaters' plans while in Bellatrix's guise.

One challenge would be Harry's strong will. He has his own beliefs and values that are opposed to Bellatrix's dark ideology. Another challenge could be hiding Harry from Voldemort. Voldemort might not approve of Bellatrix raising Harry in her own way. Also, Bellatrix herself has a reputation to uphold among the Death Eaters, and raising Harry could be seen as a risky and strange move.

One of the main themes is the exploration of redemption. Bellatrix is a character who has committed many heinous acts, and in some fanfics, Harry becomes the catalyst for her possible redemption. Another theme is the power of connection. Despite their differences, they are drawn to each other in some fanfictions, showing that even in the wizarding world, unexpected connections can form.