FURVERT!

after_transformation animal_genitalia animal_penis animal_vulva anus backsack balls big_balls big_penis black_anus black_balls black_penis blonde_hair bodily_fluids brown_body brown_fur butt collar cum cum_in_vagina cum_inside darkened_anus darkened_balls darkened_genitalia darkened_penis darkened_vulva duo equid equine equine_genitalia equine_penis equine_vulva erection eyes_closed female female_penetrated feral feral_on_feral feral_penetrated feral_penetrating feral_penetrating_feral from_behind_position fur genital_fluids genitals hair hi_res hooves horse inside intraspecies larger_male leaking_cum male male/female male_penetrating male_penetrating_female mammal mounting penetration penis quadruped rufciu sex size_difference smaller_female smaller_penetrated stable vaginal vaginal_penetration vulva