Perhaps a story where Hanabi has a goal or a dream that she wants to achieve, and Naruto is the one who encourages and supports her throughout the process. In the fanfiction world, this could be symbolically represented as Hanabi being 'pregnant' with this goal. Naruto's presence and influence are so strong that it's like he's the catalyst for this 'pregnancy'. The story could then be about their adventures together as Hanabi works towards achieving her dream, with Naruto by her side as a friend and mentor.
One possible plot could be that Naruto, Hinata, and Hanabi are on a special mission together. During the mission, they find an orphaned child. Naruto, being the kind - hearted hero, decides to take the child under his wing. Hinata and Hanabi support him wholeheartedly, and they all form a family - like bond. It's a story about family and friendship rather than the inappropriate implications of the title.
There might be some fanfictions that explore the relationship between Naruto and Hanabi in a non - inappropriate way. However, it's important to note that in the original Naruto series, Naruto is with Hinata and Hanabi is Hinata's sister. So such a concept is a deviation from the canon. But some fanfic writers may create stories focusing on their friendship or an alternate universe scenario that doesn't involve inappropriate themes.
Well, if we were to consider a non - inappropriate version, a possible plot twist could be a time - travel scenario. Maybe Naruto travels back in time and, instead of a romantic or sexual relationship, he ends up being in a situation where he has to protect Mikoto from some great danger. And through some magical or ninja - like means, something happens that gives the false appearance of pregnancy as part of a plot by an enemy to create chaos. So Naruto has to clear his name and also save Mikoto from the real threat.
A possible plotline is that Hanabi discovers she is pregnant during a time of peace in the ninja world. Naruto and Hanabi decide to keep it a secret at first to enjoy the moment privately. As the pregnancy progresses, they start to share the news with their closest friends, like Shikamaru and Sakura, who offer their support and advice on things like baby names and nursery setup. And they also have to think about how their child will grow up in a world full of ninjas and different clans.
One possible storyline could be that Naruto and Hanabi are brought together through a series of unexpected events. Maybe they are on a joint mission to protect the Hidden Leaf Village from a new threat. During this mission, they start to see each other in a new light and develop feelings for one another. Another idea could be that there is some sort of arranged marriage situation in the fanfiction, where they initially resist but then gradually fall in love.
There might be some fanfictions that handle the idea in a more innocent or non - inappropriate way. For example, they could focus on the concept of Naruto and Sakura having a future together in a family - friendly context, like exploring how they would raise a child in a world at peace after all the battles. But it's important to note that such fanfictions may be hard to find as the original concept can easily cross into inappropriate territory.
One possible storyline could be that Hanabi is captured by a group of rogue ninjas. Naruto, being the hero he is, hears about it and immediately sets out to rescue her. He uses his signature jutsus like the Rasengan to fight off the captors and finally saves Hanabi.
One possible storyline could be that Harry is cursed by a dark wizard. The curse has the unexpected side - effect of making him pregnant. He then has to search for a way to break the curse while dealing with the physical and emotional turmoil of pregnancy. Another could be that it's a result of some experimental magic gone wrong. He might have been trying to help someone with a fertility spell and it backfired on him.
One possible storyline could be that they are in a committed relationship and the pregnancy is unexpected but they decide to face it together. They might struggle with how it will affect their hero careers and deal with the reactions of their friends and families.
One possible storyline could be that Sirius initially panics when he finds out about the pregnancy. He might struggle with his responsibilities as he has a rather wild and carefree nature in the original story context. He could then gradually grow into the role of a father - to - be, facing challenges from his friends and family who may have different expectations.