Rule 34 Dev - 1futa 2017 5_fingers animal_genitalia animal_penis anthro areola biped breasts deckland dickgirl equine equine_penis erection fur furry futa_only futanari grey_background greyscale hair hands_behind_head horsecock intersex looking_at_viewer lying mammal medial_ring monochrome nipples nude on_back penis pinup pose simple_background snout solo striped_fur striped_tail stripes tail_tuft tuft zebra|2678267568