Either corruption

( completely making this up)( also futa warning)( possible ethereal on human action)

This is for short stories because honestly I don't see them being very long that involve either corruption. The first appendage that either corruption sets into is the genitalia particularly the male genitalia when either corruption females then they grow temporary male genitalia as long as it's treated it goes away. In general the way it works is the etheric matter settles in the testicles which then begin to corrupt the rest of the genitalia the longer this goes without releasing the etheric matter the more the corruption progresses the more a person has ether resistance the longer it takes for them to become ethereals While most ethereals are destructive in nature there have been a number of ethereals that have been identified that have been referred to as corruptors these ethereals do not actually attack to kill their primary directive is to release their sexual urges on their victims as a side effect turning their victims into ethereals ( one thing to note is either corruption affects everything from animals and machines to people nothing is safe from it)( basically just pick a character put them in the situation regarding either corruption)

( I hope that was a good explanation and helps give some of you some ideas on things to write in the scenario like I said I don't think these will be very long some of the characters may have multiple different settings But ultimately I don't see these threads lasting more than at most 10 chapters