A possible plot could be that they discover a new and dangerous jutsu that has been lost for centuries. They decide to train together to master it so that it can be used for the good of the village. Along the way, they learn more about each other's pasts and their friendship deepens.
Their friends' reactions would be quite diverse. For instance, Ino, who was once Sakura's rival, would have a mixed reaction. On one hand, she would be happy for Sakura as they have grown to be friends over the years. On the other hand, she might feel a bit envious. Choji would be excited and would look forward to all the feasts at the wedding. As for Lee, he would be over - the - moon for Naruto and Sakura. He would probably give them some long - winded and passionate speeches about love and friendship.
Kakashi would be more of a supportive figure. He has seen Naruto and Sakura grow up, and he would likely be happy for them. He might offer some advice to Naruto on how to handle this new relationship, especially considering the challenges they might face as ninjas. For Sakura, he could give her words of encouragement to be true to her feelings.
Sasuke might initially be a bit aloof but secretly be happy for them. He's always had a complex relationship with Naruto and Sakura, and deep down, he would see that they are good for each other.
Sasuke would probably be quite surprised. He might initially be a bit skeptical about Sakura's feelings, thinking it could be some sort of impulse. Shikamaru, being the perceptive one, would likely see the potential for chaos in this new development. He might try to stay out of it at first but keep an eye on how things unfold. Choji would be more focused on the emotional aspect and would hope that Naruto and Sakura can work things out happily.
One story could be when Naruto found a beautiful flower on his way to the academy and he gave it to Sakura. Sakura was initially a bit shy but then she smiled and thanked him. It was a small moment but showed their innocent friendship.
One great fanfiction is 'The Unbreakable Bond'. It really delves into how their friendship grows over time. Naruto's determination, Sasuke's brooding nature, and Sakura's strong will all play into their dynamic as friends. They face challenges together and support each other in ways that are both heartwarming and exciting to read.
Their friends would be overjoyed. Kakashi would probably be like a cool uncle, always ready with some wise advice for the new parents. Shikamaru might be a bit exasperated at Naruto's over - enthusiasm as a father, but still be happy for them. Ino would be excited to spoil the baby with cute outfits and toys, and Choji would bring over lots of delicious snacks for the new family to enjoy.
Sasuke would likely be very conflicted. On one hand, he has his own relationship with Naruto and Sakura. He might initially be angry at Naruto for attacking Sakura. But if he discovers the reasons behind it, he may understand Naruto's actions to some extent.
Iruka sensei would be very proud of Naruto. He has been like a father figure to Naruto, and seeing him get married to Sakura would make him feel like Naruto has truly grown up. As for the other villagers, most of them would be happy as Naruto is a hero. They would see Sakura as a great match for him, someone who can support him and also contribute to the village with her skills.