The theme of secrecy also frequently appears. The vampire in the story may need to keep their true nature a secret from the world, and especially from Birdflash, which can lead to a lot of drama and plot twists as they try to maintain this secrecy while growing closer.
Another theme could be the power dynamics. Given that vampires often have enhanced abilities, it can create an interesting dynamic in their relationship with Birdflash. They might have to figure out how to balance their different levels of power.
One common theme is the struggle between love and duty. Since Flash might be a vampire hunter or have some obligation to protect humans from vampires like Bird, they often have to decide between their feelings and what they think is right. For example, in many stories, Flash has to fight his attraction to Bird because of what Bird is.
One common theme is friendship. They often start as friends and then their relationship deepens. Another theme is adventure. They go on exciting adventures together.
A prevalent theme is adventure. Since they are often in a superhero - like setting, the fanfictions usually involve them going on various adventures together. Love and relationships are also common, especially how Fem Robin's relationships with Birdflash develop over time. This includes both platonic and romantic aspects.
The exploration of their different backgrounds is also a common theme. Robin comes from Batman's side, while Kid Flash has his own backstory with the Flash family. Fanfictions often use these differences to create interesting dynamics between them. They might struggle to understand each other's perspectives at first but then learn to appreciate and use them to their advantage in their relationship and in their superhero work.
One common theme is self - discovery. When traveling through time, the characters often learn more about themselves. Another theme is the test of their relationship. Different time periods put stress on their bond, and they have to work through it.
There's 'Vampiric Entanglement' which features a unique take on the birdflash relationship in a vampire - filled world. In this fanfiction, the authors play with the idea of how their powers interact and how they have to navigate a society that fears vampires. It has some really exciting plot twists.
You can start by looking on fanfiction websites like Archive of Our Own (AO3). It has a large collection of various fanfictions, including Vampire Birdflash ones. Just use the search function and type in the relevant tags.
One common theme is the struggle with identity. Harry, being a vampire, has to deal with a new side of himself that he may not fully understand at first. For example, in many fics, he has to figure out how to balance his wizard self with his vampire instincts.
One common theme is the struggle between humanity and vampirism. When Ash is involved, it often shows his fight to keep his humanity intact even in the face of vampiric allure.
The theme of the outcast is also prevalent. Despite her power and allure, the vampire seductress is often an outcast in both the human and vampire worlds. Humans fear her, and vampires might be jealous of her power or see her as a threat. This sense of not belonging adds depth to her character and is often explored in different ways in fanfictions. For instance, she might try to find a place where she can be herself, or she might use her outcast status to her advantage by creating her own rules and living on the fringes of society.