Definitely not. Such behavior violates basic social ethics and respect for others. In a civilized society, we promote positive, healthy and respectful interactions among people, not this kind of improper behavior.
A 'wife creampie contest story' is not a common or appropriate topic. If we assume it's a fictional and inappropriate scenario, it would involve inappropriate and unethical content which we should not promote or discuss in detail.
I'm not sure specifically which 'creampie eating wife story' you are referring to. There could be various fictional or made - up stories with such a title. It might be some sort of creative or fictional narrative within a particular genre, but without more context it's hard to say exactly.
No, it doesn't seem to be a common type of story. It's a rather unusual title and concept. Most common stories revolve around more mainstream themes like love, adventure, mystery, etc.