Rule 34 Dev - anthro armpit_hair balls barcode blush bodily_fluids body_hair bovid brown_balls brown_body brown_fur brown_nipples brown_penis clothing coat cum cumshot drooling duo ear_tag ejaculation facial_piercing fur genital_fluids genitals hi_res horn humanoid_genitalia humanoid_penis lab_coat lactating looking_at_another machine male male_lactation male_only mammal mask medical_instrument milking_machine muzzle_(object) navel nipples nose_piercing nose_ring pecs penis piercing pubes rubberbark saliva scientific_instrument surgical_mask sweat sweatdrop tattoo tears topwear vein veiny_penis|4167556936