It could be that they are in hiding to avoid a powerful enemy. This enemy might be after something they possess, like a powerful jutsu or a secret scroll. Naruto and Temari are forced to go into hiding, constantly on the move, and during this time, they develop a deeper understanding of each other and their own powers while trying to outwit their pursuer.
A power - hungry politician from one of their villages could be the main antagonist. This person might see Naruto and Temari's relationship (if that's part of the reason they are hiding) as a threat to his plans for power. He wants to use their situation to his advantage, either by forcing them to do his bidding or by getting rid of them altogether.
In the fanfiction, the baby could be kidnapped by an old enemy who wants to use its power for evil. Naruto and Temari then have to team up, along with their friends from both villages, to rescue the baby. This adventure could strengthen the bond between Konoha and Suna even more as they fight together for the sake of their child.
One possible plot could be that Naruto and Temari team up for a crucial mission to save the ninja world from a new, powerful threat. They start off as reluctant partners but gradually learn to trust and rely on each other, leading to a deep friendship or even a romantic relationship by the end.
The plot could involve Naruto coming back to find that the political situation has changed. Temari, being from Suna, could be there to help Naruto navigate the new power dynamics. They might have to deal with other villages that are becoming more aggressive. Naruto's return with Temari could also signal a new era of cooperation between the Leaf and Suna, and they could be at the forefront of diplomatic efforts. Plus, there could be some personal moments between them, like Naruto finally realizing his feelings for Temari during their adventures together.
In a 'naruto and temari in love fanfiction', perhaps Naruto is injured on a mission and Temari takes care of him. During his recovery, they have a lot of time to talk and get to know each other on a deeper level. Naruto realizes how strong and kind - hearted Temari is, and Temari is attracted to Naruto's positive energy. This could be the start of their love story.
One possible plot could be that their villages arrange their engagement as a way to strengthen the alliance between Konoha and Sunagakure. Naruto and Temari initially resist but then gradually fall in love as they get to know each other better.
Imagine a plot where Naruto and Temari are magically transported to a parallel world. In this world, their villages don't exist, and they are the only ones with their ninja abilities. They must find a way back home while also dealing with the local inhabitants who are both curious and afraid of them. As they struggle to find a way back, they rely on each other and in the process, fall in love. This love story could be a central part of the fanfiction, with their ninja skills being used to overcome the challenges in this strange new world.
The plot might involve Naruto and Temari being sent on an invasion mission to stop a new, powerful threat. This threat could be a dark organization that is gathering powerful artifacts. They invade their base to retrieve the artifacts and prevent the organization from using them for evil. Along the way, they might face many powerful foes and have to rely on each other's strengths.
One possible plot could be that Naruto and Temari are framed for a crime they didn't commit. They then have to work together to clear their names. They start by investigating the scene of the supposed crime, looking for any clues that might lead them to the real culprit. Along the way, they face many challenges and obstacles, such as being chased by the authorities who believe they are guilty.
The plot could revolve around Naruto seeking to master a new form of ninjutsu. Temari and Yugito decide to help him. Temari uses her skills with wind manipulation to create obstacles for Naruto to overcome. Yugito, with her knowledge of the tailed beasts' chakra, helps Naruto understand and control his own chakra better. As they train, they face challenges like unexpected enemy attacks during the training sessions, which forces them to work together and adapt their training methods.