My suggestion
1:Even if it's not a greater slime, Use Special Store to change appearance or genitals.
2:Greater slime would be better suited to allow pregnancy slots in the womb and anus to be shared and to be able to increase one slot with skill.
3:Please allow to get some species skills through the tome.
Question: Do you have any thoughts on adding an event that can impregnate the Corpi, Mell, or Some Harpies?