Definitely not. Fanfiction should focus on positive and respectful interpretations of a character or a person's public image. Sexual fanfiction in this case is not only disrespectful to Asa Butterfield but also sets a bad example in the fan community. It can also have a negative impact on the mental well - being of the person being written about if they were to discover it.
I'm not sure specifically about Asa Butterfield gay fanfic. Fanfic often exists in various corners of the internet, but it may not be easy to find, and also, a lot of it might be on unofficial or niche fanfic websites.
The main ethical issue is the invasion of privacy. Asa Butterfield is a real person, and creating sexual fanfiction about him is a form of exploiting his public image in an inappropriate way. It's not something he has consented to.
One popular theme is the 'coming - of - age' story. Given Asa Butterfield's roles in various movies where his characters often grow and develop, fanfics might explore similar themes for his characters or even create new scenarios for his growth. For example, in a fanfic set in a fantasy world, his character could be on a journey of self - discovery.
In the realm of fanfic, when it comes to gay stories involving a character inspired by Asa Butterfield, themes like unrequited love might be present. There could also be themes related to the character's journey in the LGBTQ+ community, like finding acceptance and a sense of belonging. But again, without actually seeing the fanfics, it's difficult to be certain about the exact common themes.
Some other platforms like Wattpad might also have Asa Butterfield fanfic. However, the quantity and quality may vary. You may need to search through different categories and tags related to him to locate the fanfic you like.
The main theme often revolves around the complex social and moral situations of the characters. It might explore themes like love, lust, and the struggle between different social classes.
I'm not sure specifically which 'Zack Butterfield' you are referring to. There could be many people with that name. It could be a personal story about someone named Zack Butterfield in a particular community, a family story, or something related to a specific event or achievement.