Sakura might have a hidden jutsu or power that she has not yet fully explored. In this dire situation, she could tap into this unknown ability to break free from the snakes. For example, she could have some latent chakra - based power that she discovers can repel or dissolve the snakes binding her.
Sakura could also be more composed in her reaction. Given her growth as a character, she might try to reason with Sasuke first. She could say things like 'Sasuke, I know you must have a reason for this. Let's talk about it.' However, if Sasuke doesn't respond or seems hostile, she may start to feel betrayed. She might then use her medical ninjutsu knowledge to try to find a weakness in the snakes or in Sasuke's technique that is keeping her tied up. She could also start thinking about how she can turn the situation around and make Sasuke see reason.
Sakura could use her medical ninjutsu skills to create a distraction. For instance, she might make it seem like she's poisoned herself, causing Sasuke (or whoever is involved in the kidnapping) to get closer, and then she could attack and escape.
In this fanfiction, it could be that Sasuke has lost his mind due to some traumatic event. He ties Sakura with snakes because he sees her as a symbol of the world he wants to reject. The snakes could represent the chaos and danger that he now associates with her. Meanwhile, Sakura might be in shock at first, but then she starts to analyze the situation. She realizes that Sasuke is not in his right mind and tries to use her medical knowledge and ninja skills to not only free herself but also to heal Sasuke's broken psyche.
One possible plot could be that Sasuke, with his snake - related powers or abilities, restrains Sakura in a non - harmful way as part of a training exercise. He might be trying to teach her how to break free from unexpected restraints in battle situations. For example, he could use his snakes to hold her arms gently while she tries to use her medical ninjutsu skills and strength to escape.
She could try to appeal to Sasuke's emotions. If she can remind him of their past, of the times they fought together and cared for each other, it might make him release her. Sakura could talk about their shared experiences and how they are on the same side deep down, hoping to break through whatever is making Sasuke hold her captive.
Well, it's not really ethical. Sasuke should be more upfront and find other ways to escape rather than using Sakura like that. Sakura trusts Sasuke and for him to seduce her just for his own gain, like escaping, is wrong. Fanfiction might play with these concepts in different ways, but overall it's a behavior that doesn't sit right. It also doesn't fit well with Sasuke's character development in the original story where he is trying to become more than just a self - centered person.
They could use their ninja skills. Sasuke might use his Sharingan to find weaknesses in their captors' defenses, and Sakura could use her superhuman strength to break through any physical barriers. Maybe they work together to create a diversion and then make a run for it.
In fanfiction, Sasuke's shadow snakes wrapping Sakura could lead to a very tense situation. It might be a part of a battle scenario where Sasuke is initially hostile towards Sakura. Or perhaps it's a miscommunication, and the snakes are used to restrain her before Sasuke realizes his mistake. It could also be a dark - themed fanfiction where Sasuke has turned evil and the snakes are a symbol of his new, menacing power over Sakura.
It would severely strain their relationship. Sasuke's act of tying Sakura with snakes is a very aggressive and demeaning act. Sakura would likely feel betrayed and terrified. This could lead to her having a deep - seated hatred for Sasuke, or at least a great deal of wariness and distance. Their relationship, which was already complex, would become even more so, with Sakura possibly vowing to never trust Sasuke again.
The act of Sasuke using his snakes to restrain Sakura could be a turning point in their relationship. It might force both of them to confront their feelings. For Sakura, she could realize just how much power Sasuke has over her, not just physically but also emotionally. And for Sasuke, he might see how much Sakura trusts him despite the situation, which could make him more open to her in the future.