First, know the characters well. For Natsu, understand his fiery personality, his loyalty to friends. For the fem end part, define the characteristics clearly. Then, create an engaging plot. Maybe start with a conflict that involves both, like a threat to the fem end world that only Natsu can help with.
To write a good natsu and fem end fanfiction, focus on the relationship between them. Build it gradually. Start with small interactions, like Natsu being curious about the fem end character's powers or way of life. Also, add details to the setting. If it's a magical place, describe the scenery, the magic rules, etc. This will make the story more immersive.
Fanfiction.net is also a good place. There are many different stories about different fandoms. You need to search specifically for 'natsu and fem end lemon fanfiction' though. Sometimes, you might have to dig a bit deeper through the search results to find the ones that really interest you.
First, understand Natsu's character. Know his strengths like his determination and his fiery spirit, and his weaknesses such as his impulsiveness. Then, create a complex plot. For example, you could put him in a situation where he has to make a difficult choice between his loyalty to Fairy Tail and a greater good. This would add depth to the story.
One popular 'natsu and fem end lemon fanfiction' might be 'A Magical Encounter'. It has an interesting plot where Natsu and the female character go on an adventure together and their relationship develops in a unique way.
First, you need to have a clear understanding of the characters. Know Natsu's personality, his likes and dislikes. For the 'futa' aspect, be careful how you introduce and handle this concept in a way that fits within the context of the story. Also, focus on creating a strong plot that involves the female character in an interesting way.
There could be a fanfiction like 'The Fem End Bond with Natsu'. In this, the fem end character and Natsu form a unique bond. Maybe they start off as enemies but gradually come to understand and support each other through different challenges they face in their magical world.
First, you need to understand the characters well. Naruto is known for his determination and his big heart. Fem Blade, I assume, has her own set of skills and a personality that is probably more reserved and focused. You should start with a strong plot, like an impending threat to both of their worlds or a mystery that they need to solve together. This will draw the readers in.
Secondly, come up with an interesting plot. It could be something that hasn't been explored much in the original Naruto series. Maybe a mystery that only Naruto and Fem Nibi can solve together. This will keep the readers engaged. Also, create some good dialogue between them that reflects their personalities and relationship.
Create an engaging plot. You could start with a problem like Natsu getting separated from his guildmates in the Tower of Heaven. Then, introduce new challenges and characters as he tries to find his way out. Maybe he has to face a series of magical traps or encounter a powerful enemy that is guarding a secret within the tower. Also, add some emotional depth. For example, Natsu could be haunted by memories of his past related to the tower, which would add more layers to the story.
You can try checking out fanfiction.net. There are often some really interesting fem Natsu and Sting fanfictions there. Just search for the relevant tags and you'll be presented with a variety of stories to choose from.
An engaging plot is key. It could be a story about their adventures together, or perhaps a romantic storyline between them. The plot should be able to keep the reader interested from start to finish, with enough twists and turns. For instance, they could be on a quest to save their guild and along the way, their feelings for each other start to develop in a more complex way.