One unique aspect is the contrast. Fluttershy is normally very gentle and shy, but as a vampire, she has this dark and powerful side. For example, in some fanfictions, she might struggle with her newfound strength and bloodlust while still having her soft - spoken nature.
One popular MLP Vampire Fluttershy fanfiction is 'Vampire Fluttershy's Night'. It has an interesting plot where Fluttershy, as a vampire, tries to balance her new nature with her gentle personality. Another is 'Fluttershy's Dark Transformation' which explores how she becomes a vampire and her relationships change as a result.
There could be many fanfiction stories about King Sombra kidnapping Fluttershy. In some, Fluttershy's gentle nature might be a contrast to King Sombra's dark and powerful presence. Maybe the story could involve the other ponies in Equestria trying to rescue her. They might use their unique talents like Rainbow Dash's speed or Twilight Sparkle's magic to outwit King Sombra.
There's also 'Changeling and the Shy One'. In this fanfiction, the changeling gets lost in Fluttershy's forest. Fluttershy discovers it and instead of being afraid, she shows her usual compassion. As the story progresses, they start to understand each other in ways neither expected, and it's really interesting to see how their relationship develops.
One great MLP Fluttershy romance fanfic is 'Fluttershy's Heart's Desire'. It has a really sweet plot where Fluttershy discovers her feelings for a particular pony in a very natural way. The writing is good and it stays true to Fluttershy's character.
A lot of MLP Fluttershy romance fanfics focus on her relationships with other ponies. They can range from sweet and innocent crushes to more deep - seated, long - term relationships. The best ones manage to capture the essence of Fluttershy's personality while still creating a believable and engaging romantic plot. For example, some might pair her with a pony who helps her come out of her shell even more in the relationship.
It's hard to say if 'mlp evil fluttershy fanfic' are extremely popular. In the vast My Little Pony fanfic community, there are all kinds of stories. Some people might be really drawn to the idea of an evil Fluttershy as it's a big change from the original character, so it could have a dedicated following. But compared to more traditional MLP fanfics that stick to the original personalities, it might not be as widespread.
One plot idea could be that a group of shadowy villains kidnap Fluttershy because they know of her unique ability to calm and befriend wild creatures. They plan to use her to tame some dangerous magical beasts for their own evil purposes. Another could be that a jealous pony, envious of Fluttershy's popularity in Ponyville, arranges the kidnapping in a bid to make themselves seem more important. Maybe a new, unknown threat from outside Equestria hears about Fluttershy's gentle nature and kidnaps her thinking she'll be an easy target to use as a hostage against the Princesses.
Well, writing an MLP Fluttershy kidnapped fanfiction isn't that difficult. You should begin with a strong opening that shows Fluttershy's normal day before the kidnapping. This will make the readers care more about her when she is taken. Then, for the kidnapping part, be creative. Maybe she's kidnapped by a group of changelings who want to use her as a bargaining chip. Once she's kidnapped, write about how she copes. Does she cry silently or does she try to escape? Now, for her friends. Each of them should have a distinct role in the rescue. For example, Pinkie Pie could use her party - planning skills to gather information from other ponies. The key is to keep the story engaging and true to the My Little Pony universe.