The Big ImageBoard (TBIB) - 2020 anal anal knotting anal penetration anatomically correct anatomically correct genitalia anatomically correct penis animal genitalia animal penis ass to ass balls black balls black body black fur black nose black tail brown sheath canid canine canine genitalia canine penis canis coprophilic intercourse darkmare dirty anal dobermann domestic dog duo fangs feces feces on penis feral feral on feral feral penetrated feral penetrating feral penetrating feral filth fur genitals german shepherd herding dog internal knot knot root knotting male male/male male penetrated male penetrating male penetrating male mammal monotone balls monotone body monotone fur monotone genitals monotone penis monotone tail multicolored body multicolored fur multicolored tail open mouth outside pastoral dog penetration penis penis tip pink penis pink tongue pinscher quadruped realistic feral reverse doggystyle scatplay sex sheath short tail small tail snout snow snowing tail tan body tan fur tan tail teeth tongue tongue out two tone body two tone fur two tone tail