A 'Metal Sonic x Shadow Fanfic' might explore an interesting dynamic between the two characters. It could involve their unique abilities interacting in different scenarios. For example, Metal Sonic's robotic precision and speed combined with Shadow's chaos powers could lead to some really intense action scenes. Also, the fanfic might delve into their personalities, perhaps showing a rivalry or an unexpected alliance.
One common theme is the idea of friendship evolving from rivalry. Sonic and Shadow start as foes but in many fanfics, they gradually become friends or at least respect each other more. For example, in 'Sonic and Shadow: A New Understanding', they learn about each other's motives and start to see the good in one another.
One common theme is friendship. Despite their differences, Sonic, Shadow and Silver often come together in these fanfics and form a bond. Another theme is teamwork. They usually have to work as a team to defeat a common enemy.
The lemon aspect, of course. This usually involves some form of romantic or sexual tension between the two characters. It can range from subtle glances and unspoken feelings to more explicit scenes, depending on the writer's style and the rating of the fanfic. But it's what gives the 'lemon' part of the genre its name. Also, the setting often plays a role. It could be set in the familiar Sonic universe, or sometimes in an alternate dimension created by the author to explore their relationship without the constraints of the main storyline.
Possible themes in a 'Metal Sonic x Shadow Fanfic' include loyalty. Metal Sonic is often loyal to Eggman, but in this fanfic, his loyalty could be tested when interacting with Shadow. Friendship could also be a theme, although it might be an unlikely friendship given their natures. They could start off as enemies but gradually come to respect and perhaps even like each other. And then there's the theme of redemption. If Metal Sonic has been used for evil in the past, could Shadow be the one to make him change his ways?
They might combine their powers through a sort of energy transfer. Shadow could transfer some of his chaos energy into Sonic while he's in Werehog form, enhancing Sonic's already formidable abilities. This could also work the other way around, with Sonic sharing his Werehog - specific energy with Shadow to give him new skills or boost his existing ones.
Some 'shadow x sonic fanfic' delve into the backstories of both characters. Maybe there's a story about how they first met in a different context than in the original games. It could show their initial impressions of each other and how those feelings have evolved over time, adding depth to their relationship.
Sure. 'Sonic and Shadow's Unlikely Alliance' is a great one. It explores how Sonic and Shadow, who are usually rivals, team up to face a new threat. The story has some really cool action scenes and interesting character interactions.
Avoid the obvious which is the adult - themed elements. Also, stay away from any plotlines that distort the characters' personalities too much. In a Shadow x Sonic fanfic, even without the inappropriate stuff, the characters should still retain their core traits like Shadow's brooding nature and Sonic's carefree speed. If a 'lemon' fanfic completely changes them into something unrecognizable just for the sake of the inappropriate plot, it's a big no - no.
One popular sonic x shadow x silver fanfic is 'The Trio's Adventure'. It has an engaging plot where the three characters team up to face a new threat in their world. The story does a great job of portraying their individual personalities while also showing how they work together.