One possible plot development could be Bella trying to find a way to escape the forced marriage. Maybe she discovers some hidden secrets about Edward or the circumstances that led to the forced union, which gives her leverage to break free.
There could also be an external threat that forces them to put aside their differences. For example, a new vampire or a group of enemies might attack their community. In this situation, Edward, Bella, and Jasper have to work together. During this time, Edward might realize that his jealousy is unfounded, and they all form a stronger bond as a result.
Another development could be Ginny's perspective. She might be conflicted as well. She loves Harry, but not in this forced way. So she could be torn between her feelings for Harry and her own sense of independence. She may start to rebel against the idea too, which could lead to some interesting interactions between her and Harry as they both deal with the situation.
Well, it could be a moment of intense emotion. Maybe Edward is angry or frustrated and his slamming into Bella is a moment of uncontrolled passion. It might lead to a big argument between them and then a subsequent making - up as they realize their feelings for each other are too strong to be torn apart by such a moment.
One possible plot development could be that it's part of a game or a light - hearted situation. Maybe they are playing a role - playing game where this is part of the scenario. For example, they could be reenacting a scene from a movie or a story they both love.
Perhaps Caroline tries to find a way to break the forced marriage. She might seek help from her friends or allies in the fanfiction world. They could come up with a plan that involves some sort of magical or political solution to free her from the obligation.
One possible plot development could be Katara initially resisting the marriage wholeheartedly. She might try to escape or find a way to nullify the forced union. This could lead to a lot of tension between her and Zuko, as he may be more accepting of the situation due to political or family reasons.
Perhaps there could be a magical object or spell involved that is causing this forced marriage. Harry and Snape might have to work together to find and break this spell. Along the way, they could learn more about each other's pasts and secrets, which could change their relationship from one of enmity to something more complex.
Bella might become more rebellious at first. The idea of being forced into a marriage goes against her independent spirit. So she could start to act out, be more outspoken, and challenge the authority that is forcing her into this situation.
In some fanfictions, they could face new threats from other supernatural beings. Maybe a new coven arrives in town, and they have to protect their family and the town. This would put their relationship to the test as they deal with the danger together.
One possible plot development could be that Harry tries to find a way to escape the marriage. She might use her magical skills and the help of her friends to break free from Voldemort's control. Another could be that she pretends to go along with the marriage while secretly planning to undermine Voldemort from within.