One possible plot twist could be that Naruto and Tayuya travel back to a time when the Hidden Leaf Village was first founded. This would put them in the middle of the early power struggles and they might have to use their future knowledge to prevent a great disaster. For example, they could stop a rogue ninja from stealing important village secrets that could have changed the course of the village's history.
Maybe they time travel to a crucial moment during a major war in the Naruto universe. Their presence could change the outcome of battles. For instance, if they end up in the Fourth Great Ninja War, Naruto could use his knowledge of the future to outwit enemies more effectively, and Tayuya might use her skills in a different way, perhaps by forming unexpected alliances with some of the shinobi they meet. This would create a whole new set of dynamics in the war.
One interesting plot twist could be that when they travel back in time, they accidentally change a major event that alters the entire ninja world. For example, they might prevent the Uchiha massacre, which would have a huge impact on characters like Sasuke and Itachi. This could lead to a completely different power dynamic in the hidden villages.
One possible plot twist could be that the kiss is part of a genjutsu. Maybe an enemy has put Naruto under a genjutsu, making him see Tayuya in a different light and be compelled to kiss her. When he breaks free from the genjutsu, he has to deal with the confusion and guilt.
One possible plot twist could be that their time travel messes up the existing timeline in ways they didn't expect. For example, they might accidentally prevent important events from happening in the past that were crucial for the future they came from. Another could be that they find out they were meant to time travel all along to fix a long - hidden problem in the ninja world's history.
One possible plot twist could be that when they travel back in time, they accidentally change something that makes their future relationship even more complicated. For example, they might prevent an event that was crucial for their initial bond. Another could be that they end up in a time where their personalities are very different, like a more war - hardened Naruto in the past, and they have to re - learn to love each other. Or perhaps they travel to a future where their love has been forgotten, and they have to rekindle it while also dealing with the new world they find themselves in.
Well, one plot twist could be that fem Naruto, due to her different personality as a female, might form alliances in different ways during the time travel. For example, she could use her charm to get closer to some characters that male Naruto might not have. Shikamaru, on the other hand, might use his intelligence in new ways. Maybe he figures out how to change the future in a more subtle way that no one expects. Another twist could be that their relationship changes. In the original, they were friends, but during time travel, they could become something more, like romantic partners, which would completely change the dynamics of the story.
Maybe Naruto travels back to his own childhood days. He could use his knowledge as Hokage to help his younger self become stronger faster. He might also be able to prevent some of the hardships he faced, like not having enough food sometimes. This would not only change his own life but also the relationships he had with people like Iruka - sensei, who took him under his wing when he was a lonely kid.
One possible plot twist could be that when they travel back in time, they accidentally change a crucial event that alters the future in unexpected ways. For example, if they prevent a key battle from happening, it might lead to a different power structure in the ninja world.
Well, a really interesting plot twist could be that Naruto and Tayuya's arranged marriage was actually part of a larger prophecy. They are meant to be together to bring peace between the Leaf Village and some other force. But neither of them believes it at first. As they start to uncover the truth behind this prophecy, they face many challenges. There could also be a twist where Tayuya gets possessed by some dark power, and Naruto has to find a way to save her without killing her. This would be a huge test for their relationship and could lead to some very emotional and intense scenes in the fanfiction.
One possible plot twist could be Naruto changing the outcome of a major battle. For example, in the Second Shinobi War, there were many crucial battles. Naruto might use his future knowledge to prevent the death of a key ninja. This would have a huge impact on the future of the ninja world as that ninja could then go on to change other events.
A plot twist could be that the bijuu themselves have a collective consciousness that Naruto doesn't expect when he absorbs them. This consciousness could start to influence Naruto's actions during his time travels. For instance, they might guide him towards certain events or people that they believe are important for their own reasons. Maybe they want to correct some past wrongs in the ninja world that were related to their existence. This would add an interesting layer to the story as Naruto has to deal with not only the power of the bijuu but also their will.