I tend to think that porn stories are very much like science fiction stories. At least the stories I enjoy are.

It is the author's job to make the unbelievable believable. Read any of the top rated stories or most any that really sticks out in your mind. What are the chances of this actually happening? Slim to nill. However, if the author has done a good job, then not only to we stretch reality, we stretch the reader's imagination.

Who the fuck wants to read about someone getting off work, watching TV and then having dinner. We do it every day. Why the fuck should we read about someone else doing it?

Now a story where someone goes home, pops a beer, looks around at his/her messy house, and says to themselves, "You know what, I'm going to turn someone into my slave." automatically has my interest.