Rule 34 Dev - abs animal_genitalia animal_penis anthro armchair balls bedroom_eyes biceps big_balls big_penis chair closed_smile equine_genitalia equine_mane equine_penis equine_tail front_view furniture genitals half-closed_eyes half-erect halter halter_only hands_behind_head hooves looking_at_viewer male mane mouth_closed muscular muscular_anthro muscular_legs muscular_male narrowed_eyes navel nipples nude on_chair pecs penis pose presenting presenting_balls presenting_penis retracted_sheath seductive sheath simple_background sitting sitting_on_chair smile smiling_at_viewer solo spread_legs spreading tail unguligrade white_background tsaiwolf equid equine horse mammal full-length_portrait hi_res line_art monochrome pinup portrait signature|22538225815