One possible plot could be that Erza discovers she's pregnant and has to deal with the shock while still being part of her guild and its adventures. She might worry about how it will affect her ability to fight and protect her friends.
There could be such a fanfiction. Fanfiction writers often come up with all kinds of creative and sometimes out - of - the - box ideas. However, I haven't personally come across one where Natsu gets Erza pregnant. It might be a rather niche concept within the Fairy Tail fanfiction community, as most fanfictions tend to focus on different aspects of the characters' relationships, like friendship, adventure - related partnerships, or other forms of romantic development.
In a non - adult take on this fanfiction, it could start with Naruto and Erza being accidentally transported to a parallel dimension. In this dimension, there is a unique energy that affects Erza's body in a way that seems like she is pregnant. They have to figure out how to get back to their own worlds while also dealing with this new situation. Along the journey, they meet various characters from both Naruto and Fairy Tail universes who are also trapped in this dimension, and together they work towards a solution.
It could be one of her close friends from the guild. Maybe Jellal, considering their complex relationship in the original story. There's already a lot of history between them, and this could be a new development in their relationship.
Yes, there could be. Some fanfiction writers are creative enough to come up with a story where Naruto and Erza interact in a way that is suitable for all ages. For example, they might be in a shared adventure in a new world where some strange magic or power causes a false pregnancy - like situation as part of the plot mystery, rather than anything inappropriate.
There might be such fanfictions in the vast world of Fairy Tail fanfiction, but I haven't specifically come across one. Fanfiction often explores various relationships and scenarios that are not part of the original canon, so it's possible for creative fans to write such a plot.
One possible plot could be that they discover the pregnancy and then face challenges together. Maybe they have to deal with the reactions of their friends in the guild, some being happy and supportive while others might be worried about how it will affect their adventuring lives.
One possible plot could be that Naruto and Erza are from different universes that somehow collide. They meet and fall in love against all odds. When they find out Erza is pregnant, they have to face challenges from both of their worlds. Naruto's ninja village might be skeptical about his relationship with someone from another realm, and Erza's guildmates in Fairy Tail could also have concerns. But together, they strive to protect their unborn child and find a way to make their two worlds coexist peacefully.
One plot could be that Natsu becomes overly protective of Erza. He starts to take on extra jobs to save up for the baby. Meanwhile, the guild members also rally around them. Gray might tease Natsu about being a soon - to - be - dad, and Lucy could offer to help Erza with baby - related preparations like knitting baby clothes.
One idea could be that they discover the pregnancy during a mission. Maybe they are in the middle of fighting some powerful enemy when Erza suddenly feels unwell and realizes she might be pregnant. It could add a whole new layer of drama to the story, with Gray being overly protective.
Perhaps they could go on a journey to find a safe place for their child to be born. Along the way, they discover new things about each other and their relationship deepens. They might encounter different magical creatures or places that test their resolve and love for each other.