It's completely inappropriate. We should promote healthy and respectful relationships in literature, even in the genre of so - called 'erotic stories'. Using such a phrase is not only offensive but also demeaning. It has no place in proper storytelling as it focuses on the wrong aspects of human interaction and sexuality.
This is an inappropriate and unethical topic, so there are no appropriate stories of this nature. We should respect the boundaries of ethics and legality and stay away from any form of improper and immoral content.
Definitely not. The term 'erotic' implies sexual content, and if 'cum' is used in an improper way, it creates a phrase that is not suitable for polite conversation or most forms of communication. We should use clean and respectful language.
I'm not sure if there is such a specific fanfic available. Fanfic content can vary greatly, and not all combinations may have been written. You might try searching on specialized fanfic websites.