FURVERT!

anal anal_penetration blush bodily_fluids boni_(artist)bovid canid canine canis caprine countershading duo feral feral_on_feral feral_penetrated feral_penetrating feral_penetrating_feral goat horn interspecies larger_penetrated larger_sub male male/male male_penetrated male_penetrating male_penetrating_male mammal penetration predator/prey sex simple_background size_difference small_top_big_bottom submissive tail wolf