Such stories usually center around sexual exploits and may present distorted and unhealthy views of relationships and human behavior. They are not something that should be promoted or consumed.
It depends. If the stories contain explicit sexual content intended for sexual arousal, it could be considered porn. But if they are more about romantic or sensual aspects, not necessarily.
There are prude to whore porn stories mainly because of the sick mentality of some creators and the inappropriate demands of a few individuals. This kind of content is unethical and should be strongly condemned.