FURVERT!

2004 anal anal_penetration anthro anthro_on_anthro ayame_emaya balls dominant duo english_text equid equine erection genitals hooves horn humanoid_genitalia humanoid_penis interspecies larger_dom male male/male male_penetrated male_penetrating male_penetrating_male mammal monochrome nude open_mouth penetration penis piercing rhinoceros sex size_difference spread_legs spreading stripes tail text zebra