One possible interpretation could be a relationship of mentorship. Orochimaru is a very powerful and knowledgeable character. He could teach Sakura some unique and powerful jutsu, which would be an interesting plot in a fanfiction. For example, he might teach her some advanced medical ninjutsu that goes beyond what Tsunade has taught her.
One common theme could be the power struggle. Orochimaru is a powerful and often cruel character. In a fanfiction with an OC (original character), the torture aspect might be used to show how the OC tries to resist Orochimaru's power. Another theme could be the exploration of dark magic or jutsu. Since Orochimaru is into such things, the OC might be tortured as part of his experiments with forbidden techniques. Also, there could be a theme of redemption. Maybe the OC manages to change Orochimaru in some way through their experiences of being tortured and interacting with him.
A plotline might involve Orochimaru having some information that could help Sakura save a dear friend, like Sasuke perhaps. So Sakura has to bargain with Orochimaru, and in the process, they form an uneasy alliance. This would explore their complex relationship and Sakura's growth as she deals with a morally grey character.
One common theme could be the corruption of Sakura's character. Orochimaru is known for his dark and devious ways, and in a horror fanfiction, he might try to manipulate Sakura's mind, leading her down a path of moral decay. Another theme could be the exploration of forbidden jutsu. Orochimaru is obsessed with powerful and often dangerous techniques. He might involve Sakura in his experiments with these jutsu, putting her in terrifying and life - threatening situations. Also, the idea of body modification or transformation could be present. Orochimaru is no stranger to changing his own form, and he could force Sakura to undergo similar, grotesque changes in the horror fanfiction.
A plot could start with Orochimaru approaching Sakura for some unknown reason. Maybe he needs her medical skills to heal a strange ailment that he has contracted. Sakura is initially hesitant but realizes that this could be an opportunity to learn more about Orochimaru and potentially stop him from doing more evil deeds.
Another theme is the battle between good and evil within Sakura. Orochimaru represents the darker side, and Sakura, being a generally good - hearted character, has to grapple with his influence. For example, she might be tempted by the power he offers but has to decide if it's worth sacrificing her principles. This internal struggle is often explored in these fanfics.
Well, since I haven't delved deep into orochimaru and sakura lemon fanfiction, it's hard to say for sure. However, possible themes could be redemption. Maybe Orochimaru has some kind of journey towards redemption in relation to Sakura. Another theme could be the clash of different values. Orochimaru has his own set of rather dark values compared to Sakura's more positive and growth - oriented ones. And there could also be a theme of unexpected alliances or relationships that develop between them in these fanfictions.
Sakura can resist Orochimaru's influence through her strong will. She has always been a determined character in the Naruto series. Her love for her friends and her village could serve as a powerful motivation to not give in to Orochimaru. She could also use her medical ninjutsu skills. Maybe she could develop a way to counteract any mind - altering substances or jutsu that Orochimaru uses on her. Another way is by relying on her own combat skills. If she can keep Orochimaru at bay physically, she has a better chance of avoiding his psychological and physical manipulations.
A plot could be that Orochimaru, seeking redemption in a way, starts to train Sakura in some unique and dark arts that he has mastered. Sakura, with her determination to become stronger, accepts this training but struggles with the moral implications. This could lead to an internal conflict within her as she tries to balance her new - found power with her values. Another possibility is that Orochimaru places a curse on Sakura for some reason, and she has to find a way to break it. In her quest to break the curse, she delves deeper into Orochimaru's lair and discovers more about his true motives and plans. Or perhaps Orochimaru kidnaps Sakura to use her as a bargaining chip against Sasuke. But Sakura uses her wits and ninja skills to not only escape but also turn the tables on Orochimaru, showing him that she is not to be underestimated.
If we assume this type of fanfiction exists, a plotline could involve a misunderstanding between Sakura and an Uchiha man. The Uchiha man, believing Sakura has wronged him or his clan in some way, decides to torture her to get information or as a form of punishment. This could involve things like using Sharingan - based illusions to make her relive her worst nightmares, or physically restraining her and causing her harm in an attempt to break her spirit. However, it's important to note that this is all very much against the general positive and heroic nature of the Naruto story.
One possible interpretation could be a display of power. Itachi is a very powerful character, and pinning Sakura to the wall might be a way to show his dominance in the fictional scenario. It could also be a moment of shock or conflict, perhaps in a situation where their paths cross in an unexpected and tense way.