Naruto might initially be shocked. Given his friendly nature towards Sasuke in the original story, he wouldn't expect such an attack from her. So, his first reaction could be pure disbelief.
He could also try to talk to her. Naruto is a character who believes in the power of communication and friendship. He might try to understand why Fem Sasuke is acting this way and reach out to her, even while he's in pain. He might say things like 'Sasuke, we're friends. Why are you doing this?'
In some cases, Naruto could become angry. If the harm done to him is too great, he might abandon his usual pacifist approach for a while. However, this anger would likely be mixed with confusion and hurt. He might vow to make Sasuke understand the wrongness of her actions while also trying to protect himself from further harm.
Naruto would probably be very confused at first. He trusts Sasuke, even if it's a Fem Sasuke in this fanfiction, and he wouldn't expect to be kidnapped by her. So, his initial reaction might be to try and talk to her, asking her why she's doing this.
It could also be due to a power struggle. Fem Sasuke might be jealous of Naruto's growing power and influence. In some fanfictions, characters can be driven by envy, and she might see Naruto as a rival that needs to be put in her place, so she ends up hurting him.
She would probably be very angry at first. Naruto is a headstrong character, and being kidnapped against her will would make her furious. She'd likely try to fight back immediately, using whatever skills she has at her disposal.
At first, Naruto would be in disbelief. She has always seen Sasuke as a friend or a rival, not a marriage partner. So, she would likely be very vocal about her opposition. She might gather her friends, like Sakura and Kakashi, to support her cause. She could also try to appeal to Sasuke's sense of justice. Since Sasuke has his own code of ethics, he might also not be happy about this forced situation. Naruto could use this to try and find a way to break free from this unwanted marriage.
Also, it allows for a deeper exploration of gender roles in the Naruto universe. A fem Naruto might face discrimination or different opportunities compared to male Naruto. How Sasuke responds to this, whether he becomes more protective or if it makes him view her differently, is a fascinating aspect. It gives readers a chance to see the Naruto world through a different lens, one that challenges the traditional male - centered narrative.
Sakura would probably be quite shocked at first. She has had feelings for Sasuke for a long time, so seeing him want to marry Fem Naruto would be a big blow. Naruto himself (in his male form in the story's context) would likely be supportive as he values Sasuke as a friend and would want him to be happy. Kakashi would be more of a neutral observer, but would also ensure that the relationship doesn't cause any unrest in the village.
At first, Naruto might be extremely shocked. He has always seen Tsunade as a respected figure. So when she hurts him, he may not be able to immediately process it. He could be speechless and just stare at her in disbelief.
Their relationship can be developed through shared experiences. For example, going on dangerous missions together. Each time they face a new threat, they learn more about each other's abilities and personalities. Naruto's positive attitude can slowly break down Fem Sasuke's more reserved nature.
In fem Naruto and Sasuke fanfiction, their relationship can be explored in many ways. One common aspect is how their friendship or rivalry might change with Naruto being female. It could add a new layer of complexity to their bond, perhaps with different emotional dynamics. For example, in some fanfics, a female Naruto might be more in touch with her emotions, which could either strengthen or complicate her connection with Sasuke.
It could be because fans like to explore different relationship dynamics. The idea of Naruto, who is usually seen as a hero, having this flaw of neglecting someone like Fem Sasuke adds an interesting layer to their relationship.