What kind of fanfic is it where Naruto gets Zabusa's sword and has a story with Tayuya?

Most likely not. Fanfics with such themes often involve adult or inappropriate content which goes against the general standards for all - audience - friendly works. However, there could potentially be some fan - made works that take a more creative and family - friendly approach to the relationship between Naruto and Tayuya, but it would be very rare.

Well, it could be a story where they are in a committed relationship and the 'pregnancy' is more of a metaphorical or accidental magical occurrence that they have to deal with in a very innocent way. For example, they might accidentally ingest some sort of magic potion that gives the false appearance of pregnancy, and then they have to go through a series of comical misunderstandings and adventures to figure out what's going on.

Well, if Naruto gets Zabuza's sword in the fanfic, it could change his entire approach to battles. Zabuza was known for his swordsmanship skills. Naruto might start training with the sword under the guidance of someone like Kakashi. He could learn to infuse his chakra into the sword, creating new and powerful attacks. Maybe he would even develop his own special jutsu that combines the sword and his existing ninjutsu.

Tayuya's character can be developed by exploring her family side. Since she's related to Naruto, she could inherit some of the Uzumaki clan's traits like strong will and tenacity. This could be shown when she faces difficult challenges and refuses to give up. Also, her relationship with Naruto could make her more empathetic towards others, as Naruto is known for his big heart.

It could be a chakra - infused sword. This type of sword can enhance the user's chakra attacks when swung.

The sword might be a tool for Naruto to better understand his own heritage. For example, it could be linked to his Uzumaki clan in some way. He might discover that the sword was created by an Uzumaki ancestor to combat a specific threat that is now resurfacing. This would lead to Naruto delving deeper into his clan's history and unlocking new powers or techniques related to it. Also, the sword could attract unwanted attention from enemies who either fear its power or want it for themselves, forcing Naruto into new and dangerous battles.

I'm not entirely sure which specific 'naruto futa tayuya fanfic' you are referring to. There could be many different fanfics with that combination in the Naruto universe. Generally, fanfics like these might explore unique relationships between the characters Naruto, Futa (not a typical main Naruto character, might be an OC), and Tayuya. Some might focus on their adventures, or perhaps on how they interact in a different scenario than the original Naruto plot.

A fanfic with Naruto seducing Tayuya could start with Naruto having a mission that involves getting close to Tayuya. He might start by showing genuine interest in her music or her skills as a ninja. As he gets closer, he could use his positive attitude and his ability to see the good in people to break through Tayuya's tough exterior. This could then develop into a relationship that challenges both of their beliefs and allegiances.

Naruto would need training in swordsmanship fundamentals. This includes proper grip, stance, and basic slashing and thrusting techniques. He would also need to train his balance, as using a sword requires different body movements compared to his normal fighting style.

The story could also take a turn where Tayuya actually has a change of heart before she even tries to attack Naruto. She could learn something about Naruto that makes her realize he's not the enemy she thought he was. For example, she might find out about his difficult past and how he overcame it, and this could make her reluctant to carry out the kill order.