The potential for alternative universes. Fanfiction allows us to explore what would happen if things were different for them. For instance, if Belle had been a powerful sorceress from the start, or if Rumpelstiltskin had never made the deal that turned him into the Dark One. There are so many 'what - if' scenarios that can be explored, which makes it very appealing. Also, their relationship has so many layers in the original story, and fanfiction can peel back those layers even more or rewrite them entirely.
One possible scenario could be that Rumpelstiltskin, despite his dark past, becomes extremely protective of Belle during her pregnancy. He might use his magic to ensure her comfort and safety, like creating a special charm to keep away any potential harm. He could also be seen gathering all the rare and precious items from his collection to make a perfect nursery for their unborn child.
Another theme is the power of true love. In some fanfictions, it's Belle's love that has the power to break Rumpelstiltskin's curses or dark spells. It shows how a deep and pure love can have a strong impact on even the most powerful and dark - hearted characters.
One idea could be a story where Belle discovers a hidden side of Rumpelstiltskin's past that changes her view of him. Maybe she finds out about a lost love he had before he became the Dark One, and this new knowledge makes her more empathetic towards him.
One common theme could be the clash of their different worlds. Security Belle might come from a more modern or technological world, while Rumpelstiltskin is from a more fairy - tale - like realm. So the theme of adjusting to each other's worlds can be common.
One common theme is redemption. Rumpelstiltskin is often a complex character with a lot of darkness, and the fanfictions might show how Belle's love helps him find redemption. Another theme could be sacrifice, as both characters might have to sacrifice something for their love to work. Also, the exploration of power dynamics in their relationship is quite common, given Rumpelstiltskin's power in the original story.
Well, Rumpelstiltskin could be filled with a mix of emotions. He might be scared at first, worried about whether he can be a good father. But as time passes, he grows more excited. He could start making little magical toys for the baby. Belle would be glowing with happiness and anticipation. She would likely be reading all the books she can find about raising a child, even in their magical world.
I'm not sure if there is an exact 'Belle killed Rumpelstiltskin' fanfic. Fanfics can vary greatly in content. It could be a very dark and alternate - universe take on the relationship between Belle and Rumpelstiltskin. Maybe in such a fanfic, there could be some deep - seated conflict that led Belle to take such a drastic action, like Rumpelstiltskin doing something unforgivable to Belle or those she loves.
One possible scenario in this fanfiction could be that Belle discovers she is pregnant and has to deal with the complex relationship she has with Rumpelstiltskin. He might be initially shocked but then slowly come to terms with the idea of becoming a father. Their journey could involve him trying to protect her and the unborn child from the various threats in their fantastical world.
One interesting storyline could be Belle trying to break Rumpelstiltskin's curse in a different way. Maybe she uses her intelligence to find a loophole in the magic. Another could be a story where they meet in a different realm and form an alliance before their usual story events.
There are many great authors in the fanfiction community. Some popular ones might include those who have a deep understanding of the characters' personalities. However, it's quite hard to name the 'best' as it depends on personal taste. But often, authors who are able to capture the complex relationship between Rumpelstiltskin and Belle are highly regarded.