In some fanfics, Bellatrix might be in a situation where she has to pretend to be in love with Harry for a deeper, more complex mission. The kiss could be the start of this elaborate ruse. This would involve her getting close to Harry, and the kiss would be a way to gain his trust at least initially. It would be a very dangerous game for her, as Voldemort would surely not approve if he found out.
One possible plot could be that Bellatrix's kiss is part of a mind - game she's playing with Harry. Maybe she's trying to get some information from him while also confusing him with this unexpected act. Another plot might be that it's a hallucination Harry has due to some dark magic influence. He then has to figure out if it was real or not and what it means for his fight against Voldemort.
Well, it could be that Bellatrix is under the influence of a love potion accidentally. And she kisses Harry in a moment of confusion. Harry is then left wondering how to deal with this situation without getting on the wrong side of Voldemort. Or perhaps it's a plot where Bellatrix kisses Harry as a form of taunting the Order of the Phoenix, knowing it will cause chaos among them.
In some fanfictions, there might be a plot where Bellatrix and Harry are forced to team up against a greater evil. For example, a new dark wizard emerges who is more powerful than Voldemort, and they have to put aside their differences. Bellatrix, with her knowledge of the dark arts, and Harry, with his courage and Gryffindor spirit, make an unlikely but effective duo.
One idea could be exploring Bellatrix's backstory before she became a Death Eater. Maybe she had a complex relationship with her family that led her down the dark path. Another could be a story where she has a change of heart, perhaps due to an unexpected encounter with a character like Harry Potter. For example, she could see some of her own past self in Harry and start to question her loyalty to Voldemort.
Well, a possible plot is that Harry discovers his true parentage in a very dramatic way. He could be in the middle of a battle or a difficult situation at Hogwarts and suddenly realize that Snape and Bellatrix are his parents. This would completely change his perception of himself and his place in the wizarding world. He might then have to deal with the consequences of this revelation, such as how the Order of the Phoenix and the Death Eaters view him.
One possible plot could be that Anakin kisses Ahsoka in a moment of extreme danger. Maybe they are about to be separated forever in a battle, and Anakin, overcome with emotion, gives her a quick but passionate kiss. It could be a bittersweet moment that changes the dynamic of their relationship, making Ahsoka more determined to fight for their cause and for Anakin.
One possible plot could be that Sasuke and Ino are forced to work together on a mission in a dangerous place. In the heat of a battle, they might share a sudden kiss out of relief when they narrowly escape death. It could be the start of them realizing new feelings for each other.
Well, perhaps there's a magical accident that causes Bellatrix and little Harry to be stuck in a time - loop or a magically sealed room together. At first, Bellatrix is enraged and wants to kill Harry immediately. But as time passes, she starts to notice Harry's courage and tenacity, which reminds her of the qualities she once admired in herself or others. Harry, in turn, tries to find a way to escape while also trying to figure out how to use Bellatrix's internal conflict to his advantage.
One plot idea could be Harry growing up in a very different environment. Instead of the Dursleys, he's raised in the dark wizarding world under the influence of Bellatrix and Voldemort. He might struggle with his identity, having the blood of both a hero (in a way, as he's related to Harry Potter in the original story) and two of the darkest wizards. He could be trained in dark magic from a young age but have an inner conflict due to some latent goodness in him.
In some Kissing Booth 2 fanfiction, there might be a plot where the characters go on an adventure together outside of their normal town setting. This could lead to new revelations about their relationships and themselves. For example, they could get lost in a forest and have to rely on each other to survive, which would strengthen or test their bonds.
Well, a cool plot for a 'Harry Potter and Bellatrix Fanfic' might be that Bellatrix, in a moment of confusion during a battle, uses a spell that transports her and Harry to a different time period. There, they have to rely on each other to survive and in the process, Bellatrix starts to question her loyalty to Voldemort. Also, a plot where Bellatrix discovers that Harry has a hidden power that could be used to bring back someone she lost, and she bargains with him for it could be interesting.
A frequent plot is that Harry, through some magical accident or powerful magic, is able to see Bellatrix's true self, which is not as evil as she seems on the surface. This leads him to start a friendship with her. Also, there are plots where Bellatrix is captured by the Order of the Phoenix, and Harry is the one who tries to rehabilitate her. He starts talking to her, understanding her motives, and gradually they become friends. In some fanfics, Bellatrix has a family connection to Harry that is revealed, and this is what starts their friendship.