FURVERT!

2009 anal anal_penetration animal_genitalia animal_penis anthro balls dominant duo equid equine equine_genitalia equine_penis erection eyes_closed flared_penis genitals hooves horn horse intraspecies larger_dom male male/male male_penetrated male_penetrating male_penetrating_male mammal moan monochrome muscular mythological_creature mythological_equine mythology navel nude open_mouth penetration penis reverse_stand_and_carry_position sex size_difference spread_legs spreading standing standing_sex thick_penis tyelle_niko unicorn