What could happen when Natsu reads Lucy's diary fanfiction?

Definitely wrong. Fanfiction based on a diary is likely to contain a lot of personal and emotional content. Natsu should respect Lucy's privacy and not read it without her permission. If he does read it, it could damage their relationship and trust.

One common theme is secrecy. Since it's about Lucy's diary, there's often an element of secrecy involved, like Natsu finding the diary by accident and having to keep it a secret. Another theme is the deepening of their relationship. As Natsu reads the diary, he gets to know Lucy on a deeper level, which brings them closer.

In the fanfiction, the lemon hot spring could be a place of peace for Natsu and Lucy. The lemon essence in the water could have a rejuvenating effect on them. Natsu could show his protective side towards Lucy in this setting. For example, if there were any small creatures around that seemed threatening, he would be on guard. And Lucy, in turn, could share her thoughts on the beauty of the place with Natsu, deepening their friendship.

Well, it really depends on what you consider 'good'. Some might be more focused on the romantic aspect between Natsu and Lucy, while others could have more of an adventure plot with the diary as a key element. I'd recommend checking out the reviews and ratings on the fanfiction platforms to find ones that are highly regarded.

Another possibility is that they get into a bit of a light - hearted argument over something silly like who has the better taste in food. But in the end, they would just laugh it off and realize how much they enjoy each other's company during this alone time.

Perhaps Natsu kidnaps Lucy as a prank that goes wrong. He initially thinks it'll be a funny joke, like taking her away during a guild party just for a bit of chaos. But then things get out of hand. Lucy might be really angry at first, but as they are alone together, they start to have some deep conversations and understand each other better.

In some fanfictions, if Natsu kidnapped Lucy, it could be a comical situation. Natsu might do it out of his own strange sense of protecting Lucy in an overzealous way. Maybe he thinks there's a danger that only he can keep her safe from, and his impulsive nature leads him to this 'kidnapping' which is more like a forced protection.

Well, it could start with Natsu and Lucy realizing what has happened. Natsu, being his impulsive self, might have some wild ideas about how to handle it. But as time goes on, he would start to understand the seriousness. Lucy would likely be the more practical one, thinking about things like preparing for the baby's arrival. Their relationship could become strained as they deal with the unexpected situation, but also grow stronger as they face it together.

I'm not sure who exactly Natsu is just from 'natsu reads fanfiction'. It could be a normal person who just enjoys reading fan - made stories. Maybe it's a nickname for someone within a particular fan community.

One possibility is that their child inherits Natsu's dragon - slayer magic and Lucy's celestial spirit magic. Maybe the child uses this unique combination to protect Fairy Tail from a new, powerful enemy.