Love triangle. This is the most obvious one. Scott is caught between his feelings for Allison and his friendship with Stiles.
Betrayal. Stiles often feels betrayed when Scott chooses Allison. It can lead to a rift in their friendship that needs to be mended. Also, sometimes Allison might feel like she's the cause of the betrayal and has to deal with her own guilt. For example, in some fanfics, she tries to push Scott back to Stiles to save their friendship.
Growth and self - discovery. Scott's choice forces him to grow and understand his own feelings better. He has to face the consequences of his decision and learn from it. Stiles, on the other hand, may use this as an opportunity for self - discovery, realizing his own importance and value outside of his friendship with Scott.
One good fanfic could be 'The Choice That Changed Everything'. It really delves into Scott's thought process as he makes the decision between Allison and Stiles. It shows how his relationship with Allison is more than just a simple attraction but also about their shared experiences in the supernatural world.
One possible reason could be that Peter has a certain allure of mystery. Stiles is a curious character, and Peter's complex past and often ambiguous motives might draw Stiles in. Peter also has a more unorthodox way of dealing with things, which could seem exciting compared to Scott's more straightforward approach.
One common theme is loyalty. Their friendship is often depicted as unwavering, no matter what difficulties they face. For example, in many fanfics, they will always have each other's backs during battles or when dealing with the mysteries in their town.
One common theme is friendship. They often show how strong the bond between female Stiles and Scott is, through thick and thin. Another theme is the fight against supernatural threats. Since they are in a world full of such elements, they join forces to protect their town and friends.
Love and loss are common themes. Since Allison's death in the series, many fanfictions explore how Scott copes with losing her, and also how their love endures. Another theme is the struggle against the supernatural world. They often face threats together, and this is a big part of their relationship in the fanfictions as well.
At first, it might be a tentative alliance. Stiles could be initially drawn to Peter for his knowledge. Peter, seeing Stiles' potential, starts to include him more in his plans. As time goes on, they might develop a mutual understanding. Stiles begins to trust Peter more and more, and Peter starts to value Stiles not just for his help but also as a friend or something more.
Love and family are common themes. The love between Scott and Allison grows even deeper with the arrival of a baby. It also shows how they form a new family unit and how their friends become part of that extended family.
Self - discovery is also a theme. As they interact and face different situations, both Scott and Allison often discover new things about themselves, which in turn affects their relationship with each other.
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.
Betrayal is another theme. Sometimes Scott's actions can be seen as a form of betrayal by Stiles, like when he might side with others over Stiles in certain situations. Fanfictions often play with this idea and how they can come back from it.