If Stiles were bitten instead of Scott, it would change the entire plot of the story. Stiles is a very different character from Scott. He's more impulsive in his thinking at times. So, when he gets bitten, he might not immediately accept the situation. He could go through a phase of denial, which could put him in danger. His friends would have to work extra hard to convince him to embrace his new identity. And his relationship with Derek might be really interesting, as Derek would have to deal with a much more talkative and inquisitive new werewolf.
The story could start with Stiles being really confused and scared about what's happening to him. He might try to hide it from his friends at first, thinking he can handle it on his own.
His relationship with his friends would likely become more strained. They might be afraid of him or he might be afraid of hurting them. For example, his best friend Scott, who is also involved in the supernatural world, might be worried about Stiles losing his humanity.
In this fanfiction, after Stiles gets bitten by a vampire, he might find himself in the middle of a vampire war. The vampire who bit him could belong to one faction, and now the other faction sees Stiles as a threat or a tool. He has to learn about vampire politics and hierarchies quickly. His friends, especially those who know about the supernatural, would try to protect him. Stiles would also have to deal with the physical and emotional changes that come with being a vampire, like the isolation that can come from living a nocturnal life and the fear of hurting those he loves.
It becomes strained. Trust is broken, and Stiles may start to distance himself from Scott. He might not believe in Scott's words or actions anymore, and there will be a lot of tension between them.
In such a fanfic, Naruto might gain some unique abilities from the bite. Maybe it would change his chakra nature or give him a new form. It could also lead to a different relationship with the creature that bit him. For example, if it was a demon, he might have to deal with its influence in a new way compared to Sasuke.
Well, often in these fanfictions, Stiles becomes more confident. His physical appearance might also change, like he could start dressing better or have a new haircut that gives him a 'hot' look. For example, he might start wearing more stylish clothes that show off his personality.
It could be that the author of the fanfiction wants to create some conflict. Stiles might hate Scott because Scott has something that Stiles envies, like popularity or a special ability that seems to overshadow Stiles. So, the author uses this emotion to drive the plot and make the story more interesting.
Well, loyalty is a big theme. In many fanfictions, Scott and Stiles' loyalty to each other is unwavering, and they would do anything to protect one another. Also, growth is a theme. We see them grow as individuals and as a duo, learning from their experiences in the fanfiction world. For example, they might learn better ways to handle the challenges that come with their supernatural lives.
Often, these fanfictions explore the deep emotional bond between Stiles and Scott. They might focus on their friendship and how it could potentially turn into something more. For example, there could be stories where Stiles realizes his love for Scott through a series of shared adventures and dangerous situations.