Rule 34 Dev - 2017 ambiguous_gender animal_genitalia animal_penis animate_inanimate anthro biceps black_body black_penis blue_hair collarbone duo equine equine_penis erection feral flared_penis hair horse horsecock imminent_sex kneeling licking licking_lips macro male mammal muscular namecat nipples nude outside penis seductive sky tongue tongue_out trojan_horse urethra wood wooden_horse_(literal) worried yaoi yellow_eyes|2826935296