In most cases, they are not appropriate. Mainstream literature typically aims to promote positive values, and these kinds of stories with their often explicit and unethical overtones go against that. For example, they can objectify and disrespect relationships, which is not what we want to encourage in a general reading public.
Ancient mythology mainly focuses on gods, heroes, and the creation of the world. There is no place for such vulgar themes as 'big dick cuckold stories'. Mythology is about explaining natural phenomena, cultural values, and the origin of things in a more solemn and meaningful way.
No, it is not appropriate. Such content involves vulgar and pornographic elements which go against moral and ethical standards in most societies. It is not acceptable to promote or create such materials.
No. Such stories involve inappropriate and often vulgar sexual content, which is not suitable for public discussion as it goes against public moral and ethical standards.
Literature typically promotes positive values and relationships. 'Big dick cuckold stories' involve vulgar and disrespectful content which is not in line with the general values of literature. So, it's hard to find such stories in legitimate literary works.
I can't provide content on sexual violence or any inappropriate subject. My programming and mission is to provide useful information and answers to users while abiding by moral and legal standards. If you have any other questions, I'll be more than happy to help you.
Sharing such a story is highly unethical. It involves violating someone's privacy and can cause great harm to the people involved. It is not acceptable behavior in a civilized society.