Well, it could be about Rarity's journey to becoming an alicorn. Maybe she discovers a hidden magic within herself and has to go through a series of trials to transform. For example, she might have to prove her selflessness by using her fashion skills to help those in need in Equestria.
Obviously, Rarity herself is the central character. Her friends from the Mane Six, like Twilight Sparkle, who could help her understand the magic involved in becoming an alicorn. Also, Spike might be there, as he's always around Twilight and could play a role in Rarity's journey, perhaps by providing some useful information he's found in his library duties.
One interesting plot could be Twilight's struggle to adapt to her new alicorn form. She might face challenges in controlling her enhanced powers at first. For example, she could accidentally cause magical outbursts while trying to perform simple spells. Another plot could involve how her relationships with her friends change. Some friends might be in awe of her new status, while others could be a bit intimidated initially.
Her friends like Pinkie Pie, Rainbow Dash, Applejack, Rarity and Fluttershy are likely to be main characters. Pinkie Pie might bring her usual cheer and parties to celebrate Twilight's new form. Rainbow Dash could be both impressed and a bit competitive, trying to keep up with Twilight's new abilities in her own way. Applejack would offer her down - to - earth advice and support. Rarity might be excited to create new outfits for Twilight as an alicorn. And Fluttershy would be there with her gentle nature, providing a calming presence.
Another theme is her relationships. Fanfics often explore her friendships with the other ponies in Ponyville, like how she interacts with Twilight Sparkle or Fluttershy. For example, there are stories where she helps Fluttershy gain more confidence through fashion. Also, her rivalry with other fashion - minded ponies can be a theme, showing her competitive side in the fashion world.
No, chastity - themed fanfics are not popular in the MLP fandom, especially when it comes to Rarity. Most fanfics focus on more common themes like friendship, adventure, or character growth.
One common theme is self - discovery. As Twilight becomes an alicorn, she has to figure out her new place in the world. Another theme is the power and responsibility that comes with her new form. For example, in many fanfics, she has to learn how to use her enhanced magic wisely.
Power management is another theme. Alicorn Twilight has more power, and fanfics often explore how she can control it. Some fanfics show her struggling with the magnitude of her power, while others show her using it skillfully to overcome obstacles and protect those she cares about.
One great fanfic could be 'Rainbow Dash's Ascent to Alicorn'. In this fic, Rainbow Dash discovers her new alicorn powers in a really exciting way. It shows her journey of self - discovery as she tries to adapt to the changes. The author does a wonderful job of portraying Rainbow Dash's character, staying true to her original traits like her competitiveness and loyalty.
One common theme is the struggle between good and evil. Since Nightmare Rarity is a darker version, there's often a battle within her or against other characters. Another theme is the power of friendship. Even in a fanfic about a villain - like character, friendship can play a role in her development. Also, the theme of transformation is common, whether it's her changing from Nightmare Rarity back to normal Rarity or evolving into something new.