One idea could be that they discover their relation after a long time. For example, Naruto has always felt a special bond with Sakura, and when they find out they're siblings, it adds a whole new layer to their relationship. Naruto might be more protective of Sakura in a different way than before.
There could be. Fanfiction often takes creative liberties with the original story. However, this particular concept might be a bit of a stretch considering their original relationship in the Naruto series. But in the world of fanfiction, it's possible for an author to build a whole new narrative around Naruto being Sakura's brother, exploring things like their shared family secrets or how they support each other in different ways.
The exploration of their combined skills is interesting. Sakura's medical skills and Sasori's puppet - making and combat skills could be used in tandem. For example, they could develop new techniques that combine Sakura's chakra control with Sasori's puppet mechanisms. Also, the conflict between their different worldviews - Sakura's more positive and Sasori's more jaded - can create a lot of drama and tension in the fanfiction.
Well, with Sasuke for example. Sakura's relationship with Sasuke would be completely different. Instead of having romantic feelings, she would see him more as a friend of her brother. Naruto, on the other hand, might be more cautious about Sasuke's intentions towards his sister.
One possible plotline could be that they discover their relation and then Naruto becomes overprotective of Sakura. Another could be that they have to face some family secrets together. Maybe there's a hidden power in their family that only they can unlock as siblings.
One idea could be that Sakura's sister is a criminal because she was brainwashed by a powerful enemy. She might be forced to carry out heinous acts against the Hidden Leaf Village. The fanfiction could then focus on Naruto and Sakura trying to rescue her and break the brainwashing.
I've heard of a fanfic where Sakura and Sasori are siblings and it delved into their backstory. It explained how they came to be separated and then reunited. The story focused on Sakura's attempts to bring out the good in Sasori, despite his past actions as a villain. It was really interesting to see how their relationship developed in this different context.
Yes, there are some. You can check out some popular fanfiction platforms like FanFiction.net or Archive of Our Own. However, the quality can vary greatly. Some might focus more on their new sibling - like relationship and how it affects the original story dynamics, while others might not be as good in terms of plot or character development.
Yes, there are some fanfics out there with this concept. It's an interesting take on the Naruto universe as it completely changes the dynamics between the two characters. They would have a very different relationship compared to the original series, with Naruto being more of a protective family figure to Sakura.
One possible plot could be that they discover they are siblings later in life. Maybe there was some sort of hidden family secret or a mix - up at birth. Then they would have to deal with the emotional turmoil of this new revelation while still being part of the ninja world. They might also have to face the reactions of their friends like Sasuke, who would have to adjust to this new family dynamic.