Well, often there's the theme of mutual discovery. The male human discovers the dragon's world, which is full of magic and mystery that he's never known. And the female dragon, in turn, gets to know about human emotions and culture more closely. Also, a theme of protection might be present, where the dragon protects the human from various threats, creating a bond between them.
The theme of transformation can also be common. Sometimes the human might gain some dragon - like abilities or the dragon might take on more human qualities as they interact. Another theme is the struggle against society's norms. Since their relationship is not typical, they often have to fight against the expectations and prejudices of their respective species' communities. This adds a layer of drama and conflict to the fanfics.
One common theme could be the exploration of the Female Titan's powers in unique scenarios. For example, in some fanfics, the Female Titan might use her abilities in a way that wasn't shown in the original work, like using her hardening ability for creative purposes. Another theme could be the relationships she forms with other characters. It could be a friendship or an alliance that is developed in a way that adds depth to the story. Also, some fanfics might focus on her backstory, delving into how she became the Female Titan and what her life was like before that transformation.
In many of these fanfics, there is a theme of discovery. The male human discovers the world of the female wolf, which could include her natural habitat, her way of life, and her pack. And for the female wolf, she might discover the complexity of human emotions and society. There can also be a theme of transformation, where either the human takes on some wolf - like qualities or the wolf becomes more accustomed to human ways.
One common theme is the idea of acceptance. The male human has to accept the dragon anthro's different nature, like her powers and appearance. For example, in many stories, the human is initially afraid but then learns to embrace her dragon - like qualities.
Transformation is also a common theme. Sometimes the male human may be in danger of being turned into a werewolf, or the female werewolf may try to suppress her werewolf side for the sake of the relationship. Additionally, the idea of loyalty is often explored. The female werewolf's loyalty to her pack and how that conflicts or aligns with her loyalty to the male human, and the male human's loyalty to the female werewolf in the face of potential danger from other humans or werewolves.
Another theme could be cultural exchange. If the fanfic is set in a fantasy world where humans and dragons have different cultures, the female human and the dragon could learn from each other. The dragon might teach the human about its magic or its view of the world, and the human could introduce the dragon to human values or skills. This theme can add depth to the relationship between the two characters without involving adult or inappropriate vore - related content.
Another theme is adventure. The male human and female dragon often go on adventures together. They might be searching for a lost treasure, or trying to stop an evil force. These adventures not only test their relationship but also allow them to learn more about each other and the world around them.
Common themes often revolve around loyalty. Glaceon could be fiercely loyal to the human it befriends, and the human could also show unwavering loyalty. There's also the theme of adaptation. The human has to adapt to the world of Pokémon where Glaceon lives, and Glaceon might have to adapt to human ways. Additionally, there could be a theme of cooperation. They work together to achieve a common goal, whether it's saving a Pokémon in trouble or finding a rare item in the Pokémon world.
Another common theme is acceptance. They have to accept their new form, and also seek acceptance from others, whether it's from the dragon community if they end up there, or from their human friends and family who might be scared or confused by their transformation.
One common theme is friendship. The human and the dragon start off as strangers, perhaps even wary of each other at first. But as they interact more, they realize they can help each other out. Another theme is adventure. They might embark on a journey together to find a lost treasure or to defeat a common enemy. Also, the theme of mutual respect often shows up, where the human respects the dragon's power and the dragon respects the human's intelligence or courage.