Rule 34 Dev - 3_heads animal_genitalia animal_penis balls big_balls blue_eyes canine_genitalia canine_penis claws countershade_torso countershading erection feral genitals green_eyes heterochromia huge_balls knot male multi_head muscular muscular_feral muscular_male paws penis penis_tongue quadruped sheath snake_hood snake_penis solo tail unusual_anatomy unusual_genitalia unusual_genitalia_placement unusual_penis unusual_penis_placement vein veiny_penis tochka european_mythology greek_mythology mythology pattarchus canid canid_demon canine canis cerberus cobra demon dobermann domestic_dog hellhound mammal mythological_canine mythological_creature pinscher reptile scalie snake hi_res|23079502355