Rule 34 Dev - 2017 all_fours anal anal_sex animal_genitalia animal_penis anus ass backsack balls bat_pony bat_wings blue_eyes blush bridge brown_eyes brown_hair collar cutie_mark dock doggy_style domination duo equine equine_penis evomanaphy fan_character fangs feral feral_on_feral from_behind_position grin hair half-closed_eyes hi_res hooves horsecock leash looking_pleasured male male_domination male_penetrating mammal medial_ring membranous_wings moonslurps multicolored_hair my_little_pony nude on_top open_mouth outside penetration penis perineum petplay puffy_anus river roleplay sex shadow shaking signature sky slit_pupils smile teeth tongue tree two_tone_hair underhoof vein water wings yaoi|2960440904