Don't know if anyone has made one similiar but had a thought that once you have all the parasites in game (mimbranes, butt bug, cockvine/cuntsnake) an apex parasite would appear on poe A or in the deep caves. A mask that seals the mimbrane to the face and slowly grows all the way through the player, giving them a throat like the one the brothel gives in its bad end. once its finished it seals to the buttbug and cant be taken off. It could give an achievement or a perk to the player being a parasite bed.
Once its at that stage the player start growing tentacle wings which when fully grown can turn the mimbranes and parasitic tail into 'armour and a club' but cumming all over it which could give another perk of parasite warrior.
Finally could have something else happen to make the player a parasite queen if theyve been careful with how they have been fighting and let them carry on playing or give them a bad end depending on how many species have cummed in/on them. if all of them have player becomes a parasite seed bed and losses their mind, wandering around and infecting everyone they com in contact with
Once its at that stage the player start growing tentacle wings which when fully grown can turn the mimbranes and parasitic tail into 'armour and a club' but cumming all over it which could give another perk of parasite warrior.
Finally could have something else happen to make the player a parasite queen if theyve been careful with how they have been fighting and let them carry on playing or give them a bad end depending on how many species have cummed in/on them. if all of them have player becomes a parasite seed bed and losses their mind, wandering around and infecting everyone they com in contact with