A possible plot twist is that Severus is under a spell that makes him seem more appealing to James. James falls for this new version of Severus, but when he finds out about the spell, he has to decide if his feelings are real or just a result of the magic. It could lead to a complex exploration of love, magic, and self - discovery.
One possible plot twist could be that they get married for a strategic reason in the wizarding world. Maybe to unite two powerful magical families or to end a long - standing feud between Slytherin and Gryffindor. Another could be that they discover a deep - seated mutual respect during their married life that they never expected, as Severus was always seen as a Slytherin outcast by James and his friends, but now they start to understand each other on a whole new level. And perhaps, in a strange turn of events, they find out that they have a common enemy that forces them to work together and this marriage becomes a key part of their plan to defeat that enemy.
In some fanfictions, a great plot twist is when Draco is on the verge of making a really bad decision, like joining the Death Eaters completely. But then he discovers his true relation to Severus. This changes his perspective as he realizes Severus has been secretly protecting him all along. It makes him question his loyalty to the Dark side. Also, there could be a plot twist where Severus has to choose between his loyalty to Dumbledore and protecting his son Draco, which creates a lot of internal conflict for him.
One interesting plot twist could be that Severus and Harry are forced to marry for political reasons in the wizarding world. Maybe there's a threat from a dark force and their union is seen as a way to unite different factions. Another could be that they initially hate the idea but gradually fall in love as they discover things about each other they never knew. For example, Harry might learn about Severus's deep - seated loyalty to Dumbledore and Severus might see Harry's strength beyond his Gryffindor bravado.
In some 'bella and james mates fanfiction', a plot twist could be that James is actually under a spell that makes him seem evil, and when the spell is broken, he and Bella can truly explore their mate bond. This completely changes the dynamic from the original story.
One possible plot twist could be that they initially deny their feelings due to their close friendship within the guild. They might think it's just a strong bond of comradeship. Another could be that an outside force tries to separate them because their combined power when in love is seen as a threat. For example, a dark wizard might try to break their relationship before they fully realize their love for each other.
A plot twist could be that Shion turns out to be related to a powerful and ancient clan that has a feud with Konoha. When Naruto and Shion's relationship becomes known, it causes political unrest. Naruto has to fight not only for their love but also to bridge the gap between the two sides.
One possible plot twist could be that Goku, being oblivious to romantic feelings most of the time, initially mistakes Bulma's love for just friendship. For example, when Bulma tries to be more affectionate, Goku might think she's just being really nice like she always is. Another twist could be that Vegeta, who has his own complex relationship with Bulma, discovers her feelings for Goku and it causes a huge rift between them. He might feel betrayed or jealous, which could lead to some intense confrontations. Also, there could be a plot twist where an outside force, like an evil villain, tries to use Bulma's love for Goku against them. Maybe the villain captures Bulma and tries to force Goku into a dangerous situation to save her.
In some fanfictions, a plot twist could be that Voldemort tries to attack during the wedding. This adds a whole new level of danger and drama to the story. It forces James and Lily to rely on their friends and their own magical abilities to protect everyone at the wedding.
A possible plot twist is that James and Lily Potter survive but are stripped of their magic. They then have to rely on their wits and the help of non - magical friends to outsmart Voldemort. They could also discover that they have a special connection to an ancient magic that Voldemort is afraid of. This could lead to a whole new battle strategy against the Dark Lord.
One interesting plot twist could be that Severus Snape, as a 'king' in the fanfiction, discovers a long - lost magical art that gives him the power to change the past. This could lead to him preventing some of the tragedies that happened in the original Harry Potter story, like Lily's death. Another could be that he rules over a hidden magical realm where the rules of Hogwarts and the wizarding world as we know it don't apply, and he has to constantly defend this realm from dark forces that want to take over.