FURVERT!

4:5 anal anal_penetration animal_genitalia animal_penis anthro blue_theme blush bodily_fluids dominant duo equid equine equine_genitalia equine_penis erection female female_penetrated from_behind_position genitals hassana hi_res horse larger_dom larger_male male male/female male_penetrating male_penetrating_female mammal monochrome murid murine nateday open_mouth penetration penis rat rodent sex size_difference sketch smaller_female smaller_penetrated sweat tail tight_fit