It could also be for power play. Sage Madara is a very powerful character, and restraining Sakura might be a way to show his dominance over her. In fanfiction, this can create tension and drama in the story.
One reason could be that Sakura poses a threat to his plans. Maybe she has some knowledge or ability that could disrupt what he's trying to achieve, so he restrains her to prevent that.
Perhaps there's some sort of misunderstanding or vendetta. Sakura might have unknowingly wronged Sage Madara in the context of the fanfiction story, and his way of getting back at her is to restrain her until he gets some sort of satisfaction or resolution.
Perhaps he sees her as a threat. Sakura is a skilled kunoichi, and Madara may want to prevent her from interfering in his plans. So he restrains her to keep her out of the way.
Well, in some fanfictions, Sage Madara might use his powerful chakra to create barriers around Sakura, restraining her physically. This could be a way to stop her from using her medical ninjutsu or combat skills against him.
Well, it could be through his powerful ninja techniques. Maybe he uses his Sharingan to paralyze Sakura, or perhaps he physically restrains her with his great strength. In fanfictions, there are many creative ways for such a scenario to play out.
Well, one reason could be the contrast between their characters. Madara is this powerful, somewhat dark and brooding figure, while Sakura is a strong - willed and kind - hearted healer. The idea of such a powerful and dark character being obsessed with someone like Sakura can create an interesting dynamic.
Perhaps the Itachi clone is being controlled by some external force in the fanfiction. This force might be using the clone to restrain Sakura as part of a larger scheme. It could be related to some power struggle within the Naruto universe created in the fanfiction. The clone, having no choice, has to follow the orders and restrain her.
One possible plotline could be that they are forced into a situation where they have to be together, and over time, feelings develop and Sakura gets pregnant. Another could be a magical or alternate universe situation where their relationship is different from the original Naruto story, leading to her pregnancy.
In such fanfiction, Sakura might be depicted as more alluring and perhaps more bold in her interactions with Madara. Madara could be shown as having a certain charm that draws Sakura to him.
It could be that while Sakura is restrained, other characters get involved. For example, Naruto or Sasuke might sense her distress. Naruto could try to talk Itachi's shadow clone down, appealing to their shared experiences. Sasuke, on the other hand, might be more aggressive in his approach to free Sakura, leading to a tense stand - off between him and Itachi's clone.
One reason could be to create a shock factor. By making Naruto Madara's son, it completely flips the established relationships in the Naruto world, which can draw readers who are looking for something completely different. Another reason might be to explore new power dynamics. If Naruto were Madara's son, his potential powers and how they develop could be re - imagined in a very different way.
One reason could be to create a new power dynamic. If Naruto was Madara's reincarnation, it would bring a whole new set of powers and abilities into play. Another reason might be to explore a different kind of character development. By having Naruto be Madara's reincarnation, the fanfic author could take Naruto on a different journey, perhaps one that involves more of Madara's ruthlessness or strategic thinking. Also, it could be just for the shock value, to present readers with a completely unexpected twist on the characters they know so well.