Well, it could work if there's some sort of crossover magic. Maybe Naruto is transported to the RWBY universe and he somehow gets his hands on Yang's weapons. He might use his ninja skills in combination with the power of those weapons in a really unique way.
Well, in a RWBY fanfic with Naruto having silver eyes, it could be a symbol of a new destiny. The silver eyes in RWBY are often associated with a special power and a certain lineage. If Naruto has them, he might be seen as an anomaly in the RWBY world. He could use his ninja skills along with the power of the silver eyes. For example, his shadow clone jutsu combined with the blinding light of the silver eyes could be a really powerful combo against enemies.
One way is through epic battles. He could face off against powerful enemies and use different elements to counter their attacks. For example, if the enemy uses a lightning attack, he could use earth to ground it.
If Naruto had Yang's weapons in a RWBY fanfic, it would change the dynamics of battles. Naruto's chakra could give a new edge to the weapons. He might also modify the weapons a bit using his ninja knowledge. For example, he could find a way to attach some of his ninja tools to the gauntlets. And his fighting style would mix the brute force of Yang's attacks with his own ninja agility.
Since 'yangs arm lemon fanfic' is not a widely known mainstream work, it's difficult to precisely define what it's about. It could be a creative work by a fan who has their own unique interpretation of a character Yang. The 'arm' might play a central role in the plot, perhaps being a source of strength or weakness. The 'lemon' might add an element of mystery or quirkiness to the story. Maybe it's part of a series or has a specific genre like adventure or mystery, but again, this is just guessing without more information.
One way it could develop is that the baby has some special powers that attract the attention of villains. Naruto and Sasuke then have to protect the baby while also trying to teach it right from wrong. As the baby grows, it could start to have its own dreams and goals, which might be different from what Naruto and Sasuke expect, adding more drama to the story.
Well, one way it could work is if there was some sort of interdimensional rift. Maybe the Silent Hill nurse got pulled into the Naruto universe. She could be a new and terrifying enemy for the Naruto characters. They would be confused by her strange appearance and the way she moves. For example, Naruto might initially think she was some new type of jutsu - created enemy.
In fanfic, a tail on Naruto might represent a connection to some ancient or forgotten part of his heritage. It could be that the tail is a physical manifestation of a long - lost bloodline ability. This could open up new storylines where Naruto has to discover and master this new aspect of himself. For example, he might need to find an old scroll or a mentor who can teach him about his tail and what it means. It could also lead to new relationships with other characters who are either intrigued or afraid of his new feature.
One possibility is that they find the Naruto fanfic a bit confusing at first. The concepts of chakra and ninja villages are very different from their own world of Remnant. But as they keep reading, they might start to understand and even like the story. Blake could be interested in the complex relationships between the characters in the fanfic, similar to the relationships in RWBY. They may also get ideas for new outfits or weapons from the descriptions in the fanfic.
It could be about a crossover adventure. Maybe Naruto characters find themselves in the RWBY world during winter. They could team up with RWBY characters to face some new threats that are only active in the cold season, like ice - based Grimm in RWBY world or some new enemies in Naruto's perspective that are related to the cold climate.
Well, in a fanfic, anything is possible. Naruto's summoning jutsu typically calls upon toads. But if he were to summon Mordred, it could be through some kind of cross - over magic. Maybe a powerful mage in the Naruto world creates a link between their universes. Or perhaps Naruto discovers a new type of chakra that can interact with the magic that Mordred is associated with.