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.
He might also be angry. Naruto has a strong sense of justice and being kidnapped goes against his freedom. He could start to struggle and try to break free, using his ninja skills and his chakra. At the same time, he would be thinking about how to get out of the situation without hurting Fem Sasuke too much, because he still considers her a friend.
Naruto would probably be angry at first. He's always been a free - spirited person, and being kidnapped by Sasuke, his friend - turned - rival, would surely make him mad. He'd likely try to fight back immediately, using his ninja skills and his never - give - up attitude.
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.
Naruto would probably be really angry at first. He's a free - spirited person who doesn't like being forced into things. So he'd likely try to fight back right away, yelling at Sasuke about what he's doing.
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.
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.
The Hidden Leaf Village would surely launch a rescue mission. This would involve characters like Kakashi, Sakura, and the other ninja. Their efforts to find Naruto would be a major part of the story. Meanwhile, Sasuke might be moving Naruto from one location to another to avoid being caught, which would add more twists and turns to the plot.
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.
He could also be initially confused. Sasuke has known Sakura for a long time, and this unexpected act from her would leave him wondering about her motives. He may hold back his anger for a while to hear her out and understand why she did such a thing.
Naruto might initially be shocked and angry. He has a strong sense of justice and being kidnapped goes against everything he stands for. He would likely try to fight back immediately, using his basic ninja skills and his determination. For example, he could try to use his Shadow Clone Jutsu to create distractions and escape.
Naruto might initially be shocked and angry. He has always considered the Kyuubi as an enemy within him, and now being kidnapped by it is the worst - case scenario for him. He could try to fight back immediately, using whatever little chakra he can muster without relying on the Kyuubi's power.