Rule 34 Dev - abs animal_genitalia animal_penis anthro balls big_balls big_penis black_balls darkened_genitalia equine_genitalia equine_penis erection eyewear genitals glasses hair looking_at_viewer male mottled mottled_genitalia mottled_penis muscular muscular_male navel nipples nude office pecs penis pubes smile solo unzipped unzipped_pants vein veiny_penis mozhan equid equine horse mammal hi_res|78211408