Sakura would probably be horrified. She knows Orochimaru's reputation for being cruel and power - hungry. She would immediately reject any offer from him and get ready to fight if necessary. After all, she has grown into a strong kunoichi and won't be easily intimidated.
Sakura could react with fear at first. After all, Orochimaru is a very dangerous and unpredictable character. But then she might gather her courage and try to use her strength to break free. She could use her punches, which are quite powerful, to hit Orochimaru's snake body.
Naruto would be angry. He's not the type to just accept being kidnapped. He'd immediately start looking for ways to escape. He might try to use his ninja skills to break free from whatever restraints Orochimaru has put on him.
Sakura would be worried sick. She might immediately inform Kakashi sensei and the rest of the village. Then, she would probably want to be part of the rescue mission. Sakura has grown stronger over time and would use her medical ninjutsu and combat skills to help save Naruto. She would also be constantly worried about Naruto's well - being and would encourage the others to move faster.
Sasuke might be extremely suspicious. He has a long - standing relationship with Orochimaru, and this sudden change would make him wonder if it's a new trick. He would keep a close eye on her to see if she's still the same threat.
Shikamaru, being the intelligent strategist, would analyze the situation carefully. He would consider all the possible moves Orochimaru could make and try to anticipate his next actions. He might also try to figure out Orochimaru's motives for taking Sakura hostage in the first place.
Naruto would be extremely angry and would rush to save her without a second thought. He would likely use his new jutsu and all of his strength to break into Orochimaru's lair. Sasuke, on the other hand, would be more calculated. He might gather information first and then make a strategic move. Kakashi would probably try to calm Naruto down and form a proper rescue plan, using his intelligence and experience.
Sasuke would likely be very guarded in his captivity. He would not show all his cards, even if Orochimaru tries to get information out of him. He may act cold and distant, only speaking when necessary. Inside, he's probably thinking about ways to turn the situation to his advantage. He could also be biding his time, waiting for the right moment to make his move. Given his goal of getting stronger to avenge his family, he might consider using Orochimaru's resources, but he would never fully submit. He's always aware of the risks and the fact that Orochimaru could turn on him at any moment.
If Naruto gets captured by Orochimaru in fanfiction, his friends' reactions would be intense. Hinata, who has deep feelings for Naruto, would be heartbroken but also very determined. She might try to secretly track Orochimaru on her own at first, using her Byakugan to search for Naruto. Kiba with Akamaru would be eager to jump into action, using their tracking skills. Lee would be excited to prove his strength and save Naruto, ready to use his Taijutsu skills against Orochimaru. His friends' combined efforts would be focused on rescuing Naruto from Orochimaru's clutches as soon as possible.
In some Orochimaru lemon fanfic, he might be portrayed as having a more seductive or alluring side. However, this is a very unorthodox view compared to his original character in the Naruto series. His intelligence and cunning nature might still be emphasized, but in a more sexually charged context which is not really in line with the official Naruto story.