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.
In some fanfictions, Lucy and Gray could leave Fairy Tail due to a prophecy. They believe that their presence in the guild will bring danger to their friends. So, they leave secretly. On their journey, they discover secrets about their own powers and pasts that they never knew before. They also encounter old enemies who are now after them for leaving Fairy Tail as it disrupts the balance of power that was maintained in the guild's territory.
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.
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.
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.
A good one often has well - developed characters. It should stay true to the personalities of Lucy and Gray from the original 'Fairy Tail' series. Their relationship should be built up gradually, with believable interactions and chemistry.