A great plot idea could be to introduce a new character, perhaps a wizard who is trying to either break the curse in a different way or make it worse. This new character could bring a whole new level of conflict and mystery to the story. Also, you could write about Belle and the Beast traveling to different magical lands together, facing new challenges and learning more about each other along the way.
One idea could be to explore the Beast's past more in - depth. Maybe show his life before the curse, his relationships with his family and how that affected his personality. Another plot could be about Belle and the Beast having an adventure outside the castle together, facing new magical creatures and challenges. A third idea is to create a fan fiction where other villagers have different reactions to Belle's relationship with the Beast, some trying to understand while others oppose it more vehemently.
You could write a fan fiction where the curse on the Beast is different. For example, instead of turning into a beast, he slowly loses his memories of his human life. Belle's love would then be about helping him remember who he was. Or, perhaps make it so that the servants in the castle are not just objects but have their own unique powers that they can use to help Belle and the Beast's relationship grow.
One idea could be exploring the Beast's past more in - depth. Maybe show his life before the curse and how it affected his personality. Another could be a modern - day retelling where Belle is a scientist trying to find a cure for the Beast's curse.
One idea could be exploring the Beast's past more deeply. Maybe a story about his life before the curse, his relationship with his family and how it all led to his current situation.
One idea could be that Belle discovers a hidden garden in the Beast's castle that has magical plants which can talk and offer her advice. Another could be a backstory for the Beast, like how he got cursed in a more detailed and different way than in the original story. For example, he was tricked by a jealous wizard who wanted the castle for himself.
One idea could be that Belle discovers she's pregnant shortly after the curse on the castle is fully broken. This could bring a new sense of joy and anticipation to the castle. The Beast, now a prince again, might be both excited and a bit nervous about becoming a father. He could start making preparations like renovating a special nursery in the castle. Another idea is that during Belle's pregnancy, some of the enchanted objects in the castle could take on new roles as babysitters or helpers, adding a touch of magic to the pregnancy journey.
One idea could be that the sister of Beauty is a healer. She secretly tries to find a cure for the Beast's curse while also getting to know him in a different way than Beauty does. This could add a new layer of relationship and mystery to the story.
In a genderbend fanfic, the female Beast could be a sorceress who was betrayed and cursed. The male Beauty could be a traveling minstrel. His music has the power to soothe her and as he stays in her enchanted castle, they start to understand each other. The Beast begins to let down her guard and the Beauty discovers her true self beneath the curse.
Maybe the Dark Beauty is not truly human but a being from another dimension. She and the Beast have a connection that transcends their different forms. They must figure out how to break the curse on the Beast's castle while also dealing with her other - dimensional nature.
One idea could be to set it in a post - apocalyptic war - torn world where the 'Beauty' is a healer trying to save the injured, and the 'Beast' - like character is a war - hardened soldier. They meet when she tries to tend to his wounds and gradually fall in love as they fight for survival together.