This is a design proposal of ForceWerwolf for a Mastubator. It is about the tail of a male / female Drenath. The tail of this species is very elastic and also suitable for the absorption of food. Like a snake, they can devour their prey in one piece and everything is catched from this tail, can not escape on their own.
The outer red color and the black meat are characteristic for this species.
The essential difference between a male and a female tail of Drenath is the form inside. When a female Drenath are large rounded knobs in the tail, which can be inflated as the corpora cavernosa of the penis with blood. In the male Drenath tail there are no knobs but barbs which can be well inflated to even be able to cut through the flesh of the prey.