One possible plot could be that they fuse to stop a new and ancient evil that has awakened. This evil is so powerful that neither Naruto nor Sasuke can defeat it alone. So, they decide to perform the fusion dance and then embark on a journey to find the source of this evil and destroy it. Along the way, they face various challenges that test their new combined abilities.
In a Naruto and Sasuke fusion dance fanfiction, it could start with them realizing the need to combine their powers in the face of an extremely powerful enemy. Once they perform the fusion dance successfully, their personalities would also merge to some extent. The new character could have Naruto's friendly and outgoing nature mixed with Sasuke's more reserved and brooding side. Their abilities would be off the charts. For example, they could use the Rasengan and Chidori simultaneously, creating a new and even more destructive attack. And their speed and strength would be enhanced beyond what either of them could achieve alone.
The fusion would probably have enhanced physical abilities. With Naruto's stamina and Sasuke's speed, they could move faster and fight longer. And in terms of ninjutsu, they could combine their elemental jutsus. Maybe create a new fire - wind jutsu from Naruto's wind and Sasuke's fire.
In a fanfiction, Naruto could fuse with an Otsutsuki clan member. This would give him access to their unique powers and knowledge. He might struggle with the new, more alien part of his personality that comes from the Otsutsuki side while also trying to use their power to protect the Hidden Leaf. The fusion could lead to a whole new power dynamic in the Naruto universe.
The fusion dance can be used to bring together characters who normally don't get along. For example, Naruto and Gaara. Their fusion could be a symbol of unity between the Sand and Leaf villages, and they could use their combined powers to fight a common threat that neither could defeat alone.
One interesting concept could be the combined power they would possess. Since Naruto has the Nine - Tails' chakra and Sasuke has the Sharingan and Rinnegan, their fusion might have an incredibly powerful and unique set of abilities. For example, they could create new jutsu that combines Naruto's Rasengan with Sasuke's Chidori in a more powerful and unexpected way.
I think Kakashi could be a great character to pair with a Naruto - Sasuke fusion. Kakashi has a long history with both of them and could serve as a mentor or partner in new adventures. He could help the fusion control its newfound power.
One interesting concept could be the combined powers they would have. For example, Naruto's Rasengan combined with Sasuke's Chidori might create a super - powerful new jutsu. It could also be interesting to explore how their personalities would blend. Naruto's optimism and Sasuke's brooding nature could result in a complex and dynamic character.
In this kind of fanfiction, it can show a deeper level of unity between them. Instead of their usual rivalry - turned - friendship, the fusion represents them becoming one entity. So, it's like they are truly understanding each other on a fundamental level, beyond just words and shared goals.
In a Potara fusion fanfiction, the combined personality would be interesting. Naruto is very outgoing and friendly, while Sasuke is more reserved. The fusion could be a bit of an enigma. At times, it might show Naruto's carefree nature, like cracking jokes, but also have Sasuke's intensity when it comes to protecting friends and achieving goals. It would be a blend of the two, not too over - the - top like Naruto alone can be sometimes, and not too cold like Sasuke at his worst.