Rule 34 Dev - 2016 animal_genitalia animal_penis balls balls_touching big_balls big_penis brown_eyes clothing cloves equine equine_penis erection femboy freckles_(artist) frottage horse horsecock humanoid_penis hybrid_penis legwear looking_at_viewer male mammal medial_ring mio_(zaggatar) mostly_nude penis sex stockings yaoi zebra|2234301568