The following are not welcome in this interactive story: Gore, male preds, hard vore, scat and death.
These are my personally preferences, I don't like any type of vore that is fatal or irreversible.
If adding to the story, do not force the character to have any specific reactions to a situation, that should be the readers choice. For example: A female character wants to
unbirth him, whether he is willing or unwilling, reluctant or eager, thinks it's gross or awesome, should be up to the reader.