To develop Natsu further, we could explore his godly side more. Maybe he starts to have visions or dreams related to his godly powers. This could make him more introspective and less impulsive at times. He could also start to learn new forms of magic that are related to his godly heritage.
Another way is to give him new powers or abilities that he has to learn to control. This could lead to him facing challenges and making mistakes, which in turn would help him become a more well - rounded character. He might also have to teach the present - day Natsu about these new powers, creating an interesting dynamic between his past and future selves.
Perhaps a plot where Natsu, in a fan fiction, is given the task of training a group of young wizards who have lost their way. He has to use his own experiences and his smart, godly nature to inspire them. This could involve him taking them on adventures where they face challenges that force them to grow. At the same time, Natsu has to deal with an evil wizard who is trying to corrupt the young wizards for his own gain.
One way to develop it further could be to describe what he was thinking during those blinks. For instance, 'Natsu blinked a couple of times, his mind racing with thoughts of how to counter the strange magic he just witnessed.'
They could have more deep conversations about their future as a family. For example, discussing how they want to raise their children, what kind of values they want to instill. Also, showing them supporting each other in small daily things, like Lucy helping Natsu with his reading skills and Natsu helping Lucy when she has a tough day at the guild. This would strengthen their bond on a more personal level.
Minerva could be developed by showing her more vulnerable side. In the original series, she is often seen as strong and intimidating. But in fanfiction, she could open up to Natsu about her fears and insecurities. For example, her fear of not being good enough despite her power. This would make her more relatable and humanize her character.
Their relationship can be developed by having them share more personal stories about their past with the dragons. For example, Natsu could tell Wendy about Igneel's funny habits, and Wendy could share her memories of Grandeeney. This would strengthen their bond as siblings who share a common dragon - slayer heritage.
In the fanfiction, their relationship can be developed through mutual growth. Natsu could help Cana become more confident in her magic abilities, and Cana could teach Natsu some wisdom about life. As they see each other improve, they start to respect and admire each other more. This admiration can turn into love over time. For instance, Natsu could be there for Cana when she fails at a big magic spell, and his encouragement could be the turning point in their relationship.
They can develop their relationship by having small, everyday moments. For example, sharing breakfast together as a family, where they talk about their plans for the day. Natsu could show his love for Lucy by being more protective of her and their family in dangerous situations. Also, they could have inside jokes that only their family understands, which would strengthen their bond.
You can develop her character by giving her new hobbies. For example, she could take up painting and use it as a way to express her emotions. This would add more depth to her personality.
In general, if 'natsu orgy fan fiction' adheres to the ethical and moral guidelines of the relevant community and doesn't involve any offensive or inappropriate content like excessive violence or adult situations, it can be appropriate. However, if it goes against the values of the source material's fan base or contains disturbing elements, then it's not appropriate. So, it really depends on the specific content of this fan fiction.