One interesting storyline could be their adventure in a parallel dimension. In this dimension, Buffy and Faith have to team up with Devon to fight against a new type of demon that is immune to their usual weapons. They have to search for ancient artifacts to defeat it.
For Buffy, you can develop her character by exploring her doubts about her slayer duties further. Maybe she starts to question if there's a better way to protect the world than just slaying. With Faith, you could focus on her growth after redemption. She could start mentoring Devon in combat skills, which also helps her become more responsible.
Another theme is power dynamics. Since Faith is a powerful slayer, the relationship between her and male characters often involves power struggles or power sharing. Some fanfics explore how they work together despite their differences in power, like in a fight against a common enemy.
One great Buffy Faith fanfic is 'Faith's Redemption'. It delves deep into Faith's journey towards redemption. It shows how she overcomes her inner demons and tries to make amends for her past wrongs. The character development is really well - done.
One idea could be a magical competition. They compete to see who can master a new and dangerous spell first. Buffy might use her traditional training and moral compass, while Faith could be more reckless in her approach, which would create a lot of tension.
For Buffy, her friends like Willow and Xander would be likely allies. Willow could use her magic to give Buffy an edge in any magical challenges, and Xander would be there for moral support and to offer his own brand of scrappy help. Giles, too, with his vast knowledge of the supernatural.
One popular Buffy Faith male adult fanfic is 'Faith's Redemption'. It focuses on Faith's journey of self - discovery and her relationships with male characters in a more mature and complex way. The story delves deep into her character development and how she interacts with the other characters in the Buffyverse.
Love and friendship are common themes as well. Whether it's platonic love between the two of them, or how their relationships with others are affected by their bond. In some fanfics, they learn to truly care for each other through difficult situations, which shows the power of friendship.
One idea could be a story where Buffy and Faith have to go undercover at a high - society event where the latex dress is part of their disguise. They end up having to work together to take down a vampire who is preying on the rich guests.
One common theme is redemption. Since Faith has a rather complex past, many fanfics focus on her journey towards redemption, often with the help of Mark and Buffy. Another theme is friendship. Despite their differences, Buffy and Faith can form an unexpected friendship, and Mark can be part of that bond. And of course, there's the theme of power. All three characters have different levels of power, and how they use or misuse it is often explored in the fanfics.