Perhaps in this fanfiction, Gray and Juvia discover an ancient prophecy about their family. They learn that their future family will play a crucial role in saving the world of Fairy Tail from a great evil. So they start their family journey early, with Juvia being overly protective and Gray being the more laid - back parent. But as the signs of the approaching evil start to show, they must put aside their differences in parenting styles and train their children to be strong enough to face the impending doom.
A great plot might involve Gray and Juvia adopting a child. The child could come from a troubled background and be initially distrustful of them. Gray and Juvia would have to work hard to gain the child's trust. Along the way, they could also teach the child about magic and the importance of family in the Fairy Tail guild. As the story progresses, the family unit grows stronger and they become an inspiration to other members of the guild.
Well, perhaps Juvia might punish Gray for always being cold and distant towards her in a comical way. Maybe she could freeze his clothes every time he ignores her feelings.
In many fanfictions where Gray confesses to Juvia, it's often a very emotional moment. It might happen after a big battle where they realize how much they mean to each other. Gray could finally admit his feelings that he has been suppressing for a long time. Maybe he sees Juvia in danger and that makes him realize he can't hide his love anymore.
One possible storyline could be that Gray and Juvia are excited about the pregnancy but also nervous. Gray might be worried about being a good father, as he has had a somewhat troubled past. Juvia, on the other hand, is overjoyed and starts preparing for the baby right away. They could face challenges like finding a suitable place to live as a family, and also dealing with the reactions of their friends in Fairy Tail. Maybe some of their friends are super supportive, while others might be a bit more hesitant or worried for them.
Another reason could be related to his loyalty to the guild. Gray might think that his focus should be solely on protecting Fairy Tail and its members. He could believe that a romantic relationship with Juvia would distract him from his duties. Also, there could be some unspoken guild rules or a sense of propriety that he feels would be violated by getting involved with her.
Loke could be a side character who gives the children advice on how to be charming and confident. He could also use his powers to create illusions for the kids' entertainment. Levy could be another side character. She could be like a librarian figure for the family, lending them interesting books about magic and the history of Fairy Tail. Plus, Mirajane could be there to cook delicious meals for the family and offer motherly advice to Juvia when she needs it.
Well, it could make Gray feel an extreme sense of guilt. He might blame himself for not being able to protect her. And this could lead to him becoming more withdrawn and brooding, perhaps even pushing away his friends as he grapples with the loss.
Well, their child might inherit Gray's ice - making magic. Since Gray has such strong control over ice, it could be passed down. And maybe also get some of Juvia's water magic, which could combine in interesting ways. For example, the child could create ice sculptures that are constantly being reshaped by flowing water - like magic.
In fanfiction, Gray's love for Juvia can be portrayed in many ways. Sometimes it's a slow - burn kind of love. Gray, who is initially cold towards Juvia, gradually realizes her importance in his life as she is always there for him, through battles and difficult times.
Another great author is 'RainbowMageFan'. This author likes to create unique and exciting plotlines. For example, they might write a story where Juvia and Gray get transported to a magical realm full of strange creatures and they have to find their way back while also dealing with their growing feelings for each other. Their writing style is very engaging.
One idea could be a story where Juvia and Gray get trapped in a magical realm together. In this realm, their powers are altered in strange ways, and they have to rely on each other more than ever. They start to discover new aspects of their relationship as they face various challenges.