Often, there could be a plotline where Gray is forced into a situation that makes it look like he's cheating. Say, an enemy of Fairy Tail frames him by creating false scenarios. Or it could be a situation where Gray is trying to protect Lucy from a greater danger by getting closer to someone else, but Lucy doesn't understand his intentions at first. There are also plotlines where Gray's past comes back to haunt him and his interactions with an old acquaintance seem like cheating to Lucy.
Yes, there could be. Many fanfiction writers like to explore different scenarios, even ones that seem out of character like this. But often, they are written in a way that is more about exploring relationships and emotions rather than anything inappropriate. For example, it could be a misunderstanding - based plot where it just seems like Gray is 'cheating' on Lucy, but in reality, there's a big miscommunication going on.
There could also be a plotline where they both discover a new magic together. While exploring this new magic, they have to train closely and that physical and mental closeness could spark a romantic relationship. Maybe it's a long - lost ice - and - celestial - combined magic that only they can master, and as they figure it out, their relationship evolves.
Well, the idea of Natsu cheating on Lucy in a pregnant situation isn't a very common or well - received theme in Fairy Tail fanfictions. Most fanfics tend to focus on the positive aspects of their relationship like their friendship growing into love, or their adventures together. This kind of negative theme might be a bit out of character for Natsu, who is generally portrayed as loyal in the original series. So, while there may be some outlier fanfictions with this plot, it's not a mainstream idea.
A plotline could also involve Lucy having to team up with an unlikely group of characters, perhaps some former enemies or characters from other guilds. Together, they have to face a common threat that is much larger than any of them could handle alone. This forces Lucy to use her wits and her magic in new and creative ways, and also develops her relationships with these new allies in unexpected ways.
One great Gray and Lucy fanfiction is 'A New Bond'. It focuses on their adventure together in a mysterious land, where they have to rely on each other's skills. Gray's ice - making magic and Lucy's celestial spirits work in harmony to overcome challenges.
Perhaps some dark mages who have a vendetta against Fairy Tail. They target Lucy and Gray because they think that these two are easier to take down outside of the protection of the guild. They might want to use Lucy and Gray as bait to draw out other members of Fairy Tail.
Well, there are several great authors. Some people really like 'AriaStar' who is known for creating very detailed and emotional fanfictions about Lucy and Gray. Their stories often explore the characters' inner thoughts and feelings deeply. Another good one is 'IceCelestialWriter' whose works usually have unique and interesting plot twists.
One of the most popular plotlines is the 'Training Together' scenario. In these fanfictions, Erza and Gray train side by side to improve their magic skills. This often leads to some friendly competition and a deeper understanding of each other's abilities. For example, they might learn new techniques from each other and grow stronger as a result.
A possible storyline is a friendly competition between them. They bet on who can complete a series of challenges first. These challenges could involve things like rescuing a certain number of people in a village within a time limit, or collecting rare magical items. Along the way, they learn more about each other's strengths and weaknesses, and also grow closer as friends. This kind of storyline can also have some humorous moments, like when Natsu accidentally sets something on fire during a task that Gray then has to quickly freeze to prevent a disaster.
There are also storylines that focus on their friendship growth. Maybe they start off not getting along well because of their different personalities. Gray is more stoic and Lucy is more outgoing. But then through various adventures together, they come to understand and respect each other, and this forms a deep bond of friendship that is central to the fanfiction.