Rule 34 Dev - 5_fingers abs animal_genitalia animal_penis anthro balls biped black_hair equine_genitalia equine_penis fingers flaccid fur furniture genitals hair hooved_fingers hooves lying male markings medial_ring nude on_back penis pose relaxing sofa solo spots spotted_body spotted_fur spotted_markings tanutanuki dakota_(dark_stallion) equid equine horse mammal 2019 monochrome pinup traditional_media_(artwork)|8539151705