The tone can be different too. The original 'The Walking Dead' is mostly about survival and the dark side of humanity during a zombie apocalypse. But 'the walking dead lemon fanfiction' might add elements of humor or different kinds of relationships that are not as prominent in the original. For example, there could be more light - hearted moments between characters that contrast with the overall grimness of the show.
Well, regular 'Walking Dead' fanfic can cover a whole range of things like exploring different storylines that could have happened in the show, or expanding on the backstories of characters. But 'Walking Dead Lemon Fanfic' is more about adding a layer of adult - themed content. It might involve romantic or sexual relationships between characters in a more explicit way compared to the regular fanfic. For example, it could be about a particular romantic encounter between two characters that is described in a more sexual manner, which is not common in regular fanfic.