Often, the themes include adaptation. Stiles has to adapt to his new fox body, which might have different physical abilities and limitations. There's also the theme of mystery, like trying to find out how he got turned into a fox and how to reverse it. And of course, there's the theme of relationships. His relationships with his friends, family, and love interests will all be affected by this transformation.
The theme of empowerment is quite common. Despite the challenges of being turned into a girl, Bilbo often shows great strength and intelligence. These fanfictions usually depict her as being able to overcome difficulties and prove herself just as capable as she was as a male. This can be inspiring as it shows that gender doesn't necessarily limit one's abilities in the context of the story.
The theme of ostracism is quite common in 'Stiles hurt by pack' fanfictions. Stiles can be made to feel like an outsider within the pack, which is really painful for him. Additionally, the theme of redemption sometimes plays a role. The pack may realize they've wronged Stiles and try to make it up to him. However, this is not always the case, and sometimes Stiles has to move on without their full redemption. Another theme could be the struggle for acceptance, both Stiles' struggle to be accepted by the pack and the pack's struggle to accept the new, more independent Stiles after they've hurt him.
One common theme could be revenge. Maybe Gerard has some vendetta against Stiles or his friends, and that leads to him hurting Stiles. Another theme might be power play, as Gerard could be using his position or abilities to harm Stiles.
One common theme is identity. Stiles has to figure out who he is now as a girl, and how that fits in with his old self. For example, he might still have his same sense of humor but has to express it in a different way now.
One common theme could be the struggle with identity. Both characters might be dealing with their own identities within their respective fictional universes, and the relationship between them could further complicate or clarify that. Another theme could be the power of friendship turning into love, as they might start as friends or allies and then develop deeper feelings.
Well, one of the main themes is the exploration of the supernatural bond between them. It's not just a normal relationship but a mate bond which has its own set of rules and powers in the werewolf lore. Another common theme is the growth of their relationship. It usually starts rocky or with misunderstandings and then grows into a strong, loving bond. There's also the theme of family acceptance. Since Stiles and Peter are mates, they have to deal with how their families, whether it's Stiles' human family or Peter's werewolf family, react to their relationship.
Often, these stories also focus on the emotional journey of the characters. There could be feelings of fear, excitement, and love all mixed together. The pregnancy can act as a catalyst for a deeper exploration of the characters' emotions and their bond with each other.
A unique plotline could be that Tails is turned into a girl as part of a prophecy. In this story, she has to fulfill certain tasks in her new form to save the Sonic world. It adds an element of destiny and adventure to the whole transformation concept.
One common theme is identity exploration. Percy has to figure out who she is now as a girl and how it changes her self - perception. Another theme could be relationship dynamics. Her relationships with other characters, whether they were friends or rivals before, might change significantly. For example, a male friend might start to see her in a different light.
One common theme is self - discovery. When Rose gets a miraculous, she often has to learn about her own strengths and weaknesses. For instance, she might realize that she has a hidden courage or a particular skill that is enhanced by the miraculous.