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.
The villagers would have mixed reactions. Some of the older generation who remember Sasuke's past actions might be skeptical and even opposed to the marriage. However, the younger generation, especially those who have seen Fem Naruto and Sasuke's relationship develop, would be more likely to be excited. Hinata might be a bit surprised but would also be happy for Fem Naruto. And Sasuke's family, if they were still around, might have their own concerns about whether Fem Naruto is the right match for Sasuke, but would eventually come around.
Hinata would probably be very shocked at first. Since she has feelings for Naruto as well, she might feel a bit betrayed but also happy for her sister. She would be in a very conflicted state.
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.
One possible plot could be that Sasuke realizes his deep connection with Fem Naruto over time. Maybe they go on various missions together and he starts to see her in a new light. As they face challenges side by side, his feelings grow into love and he decides he wants to marry her. He then has to overcome the initial shock of the village and their friends, as it's an unexpected pairing.
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.
Yes, there are likely fanfictions out there with such a plot. The Naruto fandom is vast and diverse, and fans often come up with creative and unexpected storylines. Some fanfictions might explore complex relationships and scenarios where Sasuke has feelings for both Naruto and Sakura in a way that leads to the idea of marriage. However, the quality and nature of these fanfictions can vary greatly.
Sakura would be devastated. She has deep feelings for both Naruto and Sasuke. She might turn against Sasuke completely and try to take revenge herself. Kakashi would be in shock. He has mentored both and would likely feel like he failed in some way. As for the other ninja from the Hidden Leaf, they would be angry and mournful at the loss of their hero Naruto.
Naruto would probably be extremely confused at first. He has always seen Itachi as a complex figure, and suddenly being forced to marry him would be a huge shock. He might feel angry that he has no say in this. Itachi, on the other hand, would likely be stoic on the surface but internally be very conflicted. He has his own burdens and this unexpected situation would add to them.
One great fanfiction could be 'Fem Sasuke's Unspoken Feelings'. In this story, Fem Sasuke struggles with her growing affection for Naruto in a world where their friendship is tested by outside forces. The author does an amazing job of portraying her internal conflict.
The villagers' reaction would be mixed. Some would be in awe of Fem Kyuubi's power and her act of saving Naruto. They would see her as a hero and start to change their views on the Kyuubi in general. However, there would also be those who are still fearful. They might think that Fem Kyuubi has some ulterior motives and be suspicious of her. Naruto's friends from his ninja team, like Shikamaru and Choji, would probably be more accepting. They would welcome Fem Kyuubi as long as she proves to be on Naruto's side and doesn't cause any trouble for the village.
Sasuke would be furious. He's always been protective of Naruto in his own way. He would immediately start looking for her, using all his skills and resources. He might even go on a rampage if he thought Naruto was in serious danger.