One popular scenario could be during a dangerous mission. Maybe they're trapped in a magical cave, thinking they might not make it out alive. In that moment of high emotion and closeness, they share a kiss. It's a way to express their unspoken feelings for each other that have been building up throughout their adventures together.
One popular scenario could be after a major battle where they both realize their deep feelings for each other. Natsu, being the impulsive and passionate character he is, might just grab Lucy and plant a kiss on her. Another could be in a moment of great celebration in the guild. With everyone around them having a great time, Natsu and Lucy get caught up in the moment and share a kiss. And sometimes, it might be in a more private, tender moment. Maybe Lucy is feeling down, and Natsu tries to comfort her in a more intimate way, leading to a kiss.
Another common plot is Gray getting jealous when Lucy is getting too much attention from other guys in the guild. This jealousy leads to some really interesting interactions between them, like Gray trying to show off in front of Lucy in a really cute and clumsy way.
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.
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.
Well, a common theme is the power of their combined magic. In fanfiction, writers might imagine new spells or abilities that come out when Gray's ice - make magic and Lucy's celestial spirit magic work together. It can be really exciting to see how they use their unique powers in unison. And of course, there are the lovey - dovey themes. Such as how Gray might be protective of Lucy in dangerous situations, which is a sign of his growing love for her. And Lucy might be the one to break through Gray's cold exterior with her warm and kind nature.
Gray's past traumas and his journey to become stronger in Fairy Tail could lead to a moment of vulnerability. When Lucy, with her warm and empathetic nature, reaches out to him during such a time, it could lead to a kiss. Her ability to understand and comfort him might be the catalyst for that intimate moment. And Gray, in his own way, would respond with his deep - seated affection for her.
They also have a lot of shared experiences within the Fairy Tail guild. They've been on many missions together, and in these situations, they've had to support and protect each other. Fanfiction writers like to explore the deeper connection that could develop from these shared experiences. For example, in some dangerous missions, Gray has saved Lucy from harm, and vice versa. This creates a strong bond that can be further developed in fanfictions. Moreover, their different magical abilities can be combined in creative ways in fan - made stories, adding to the appeal of the pairing.
Another scenario could be that in a battle against a new, extremely powerful foe, Lucy is caught in a crossfire between two massive magical attacks. Despite her friends' attempts to protect her, she gets fatally injured and dies. This would have a huge impact on the other characters in the Fairy Tail guild, leading to themes of grief, revenge, and moving on.
Another scenario might be a situation where Natsu accidentally eats some magic - enhancing food that makes his emotions go wild. Lucy has to figure out how to calm him down and in the process, they realize deeper feelings for each other. For example, Natsu might start uncontrollably shooting fire everywhere, and Lucy uses her whip to lead him to a safe place where she can try to reverse the effect.
One popular theme is the moment of realization. For example, Gray finally realizing his true feelings for Juvia during the kiss. It adds a lot of emotional depth to the story.