FURVERT!

anal animal_genitalia animal_penis bdsm bestiality bondage bound canid canine canine_genitalia canine_penis canis clothing dobermann domestic_dog dominant dominant_male erection feral genitals group human human_on_feral interspecies knot male male/male male_on_feral male_penetrated male_penetrating male_penetrating_male mammal military nazi penetration penis pinscher pointy_ears prick_ears sex submissive submissive_male torture uniform unknown_artist