TheTastefulGentlman wrote:Unbirth as a continuation of sex - Where a couple gets more and more into sexual acts until one ends up inside the other.
I'm particularly fond of this sort thing when the unbirth is accidental/unintentional, where the woman just gets so carried away that she ends up trapping her partner inside of her.
Frustratingly hard to find any content like this though.
When you're waist-deep in her and she *still* keeps saying to go deeper.
But yea, as for things I'd like to see more of:
-unwilling without regression/digestion (as others have mentioned)
-Non-fatal cum digestion/femcum slime transformation (seen this happen exactly once before and never saw it again)
-Willing species change/transformation without regression (unbirthee gains attributes of unbirther without specifically becoming their "child")
-Absorption/assimilation (unbirther absorbs and gains attributes of unbirthee, with or without "cum digestion" as byproduct. Can be fatal or nonfatal, in latter case the unbirthee's consciousness remains as a part of their new "host" and can exert some influence over them e.g. voice in their head)
-unbirth inducing breast expansion/lactation in pred
EDIT: -Herm/futa unbirth.
Slightly related unbirth ideas I've been thinking about:
-Prey Transfer: pred "births" an unbirthed prey subject directly into another pred's womb, either through vaginal contact or some sort of ovipositor, or has the prey "extracted" via CV during intercourse. Can be used in an unwilling context as the pred gives the prey a false hope of escape only to prolong their "sentence" inside someone else, or in a "willing" context where the pred wants/needs to release their prey due to external reasons but prey doesn't want to leave, so they compromise and give the prey a new womb to inhabit (or a ballsack if that's considered an acceptable substitute) while leaving their own unencumbered.
-Umbilical Bondage: For lack of a better term for maintaining the umbilical connection between a pred and their unbirthed-but-not-regressed prey, after the latter has been let out of the womb. Could be seen as a sign of trust or be related to some sort of medical/healing-related unbirth procedure, or could be used to create a sort of "forced unwilling pred" situation in the unbirthed where they are helpless to prevent the pred from continuing to eat and digest additional prey and feed it to the unbirthee through their umbilical bond. Could also incorporate elements of absorbtion/attribute theft as the "prey"'s body is gradually transformed with each prey their unbirth pred consumes, as if the prey had eaten them all themselves.