Rule 34 Dev - 1boy 2014 abs absurd_res animal_genitalia animal_penis anthro athletic balls biceps big_balls big_muscles big_penis blue_eyes bottomless brown_fur chumbasket clothed clothing cowboy duke_stallion equine equine_penis erection eyebrows front_view fur gradient_background hair hat hi_res horse horsecock leaking looking_at_viewer male male_only mammal medial_ring mostly_nude muscular muscular_male nipples open_clothes open_shirt pecs penis pose precum presenting sheath shirt simple_background solo standing thick_penis undressing vein white_fur white_hair|2462481744