It could potentially be a term within a certain type of fanfiction that involves some sort of unique or unusual concept related to a story's plot or character actions. However, without more context, it's difficult to define precisely.
I'm not entirely sure as it might be a very specific and rather strange or inappropriate genre within fanfiction. It could potentially involve some sort of fictional scenario related to aliens in a very odd context, but this is not a common or mainstream concept.
Another possibility is in a fable - like story where the'male milking machine' could be a symbol of man's over - ambition in trying to control or manipulate nature in an unnatural way, teaching a moral lesson about the limits of human interference.
Well, you could focus on positive male friendship stories. For example, stories about guys going on camping trips together, sharing experiences around the campfire, like cooking food, telling jokes, and talking about their dreams. These kinds of stories promote healthy relationships and positive male bonding without any inappropriate content.