The idea of Sasuke kidnapping Sakura in fanfiction is quite interesting. It could be used to explore different aspects of their personalities. Sasuke is often seen as a brooding and complex character. By kidnapping Sakura, he could be showing his possessive side or his insecurities. Sakura, on the other hand, would have to show her strength and resilience in such a difficult situation. She might try to talk some sense into Sasuke or find a way to escape on her own. This kind of plot can create a lot of tension and excitement in the fanfiction.
Perhaps in this fanfiction, Tony Stark has lost his mind a bit. He could be under the influence of some sort of alien technology or a powerful spell that makes him see Peter as a threat. This could lead to him kidnapping Peter in order to neutralize what he perceives as a danger. But as the story progresses, he might start to come to his senses and realize his mistake.
One possible motive could be to use Sakura as bait. Maybe Sasuke is trying to lure Naruto to a certain location. He knows Naruto cares deeply about Sakura, so he figures Naruto will come after her.
One possible motive could be that Sasuke is being controlled by some dark force. Maybe an enemy has a hold over him and is using him to kidnap Sakura as a way to get to Naruto or the Hidden Leaf Village. Another reason might be a misunderstanding on Sasuke's part. He could think that Sakura has some information that is crucial to his personal vendetta and decides to take her by force to get that information.
One common scenario in such fanfictions is that Sasuke returns to the village after his long journey of seeking revenge. He sees how Sakura has grown and how she still has feelings for him despite everything. This realization makes him feel guilty and he decides to apologize. The apology might not be easy for him as he has always been a rather prideful character, but in the world of fanfiction, it allows for a deeper exploration of their relationship.
One possible fanfiction could be about Sasuke using his Susanoo to save Sakura from a dangerous enemy. In this scenario, Sasuke, seeing Sakura in peril, quickly activates his Susanoo. The powerful, spectral form of the Susanoo reaches out with its massive hand and grabs Sakura, pulling her to safety. This moment could be a turning point in their relationship, with Sakura realizing anew how much Sasuke still cares for her, despite their past differences.
In this type of fanfic, Naruto might have had his own dreams and goals for the village that Sasuke and Sakura are unknowingly thwarting. Sasuke may be on a path that Naruto sees as leading to destruction, and Sakura, by being on Sasuke's side, is also seen as an obstacle. Naruto's hatred then stems from his strong sense of justice and his love for the village.
In many Sasuke - Sakura fanfictions, a kidnapping plot can add a lot of drama. If Sasuke kidnapped Sakura, it could be due to various reasons. Maybe he was influenced by some dark power that made him lose his rational thinking and see Sakura as a key to something he wants. This kind of plot often leads to a series of events where Sakura has to face her feelings towards Sasuke in a very extreme situation, like trying to understand his motives while also being scared for her own safety.
The apology is significant as it can heal the emotional wounds between them. In the Naruto universe, Sasuke and Sakura had a complex relationship. His apology in fanfiction is like a bridge to a more positive connection.
There could be a fanfiction where Sasuke grabs Sakura with Susanoo during a chaotic event like a village - wide attack. The Susanoo's large form is able to cut through the chaos and reach Sakura just in time. Afterward, they have to work together to fend off the attackers. This shared experience could strengthen their relationship and make them more open to each other about their feelings and intentions.
Well, Sasuke may regret cheating on Sakura in fanfiction due to various reasons. Maybe he sees how much pain he has caused her. Sakura is a strong and loving character. She dedicated a lot to their relationship. When Sasuke cheats, he not only breaks her heart but also the bond they had. He might then look back and think about all the good times they had and how his actions have destroyed it all.