animal_genitalia animal_penis anthro anthro_on_anthro appliance ball_size_difference balls big_penis black_nose bovid canid canine canine_genitalia canine_penis canis caprine cybernetics cyborg digital_media_(artwork) domestic_dog domestic_goat dominant duo genitals goat havoc_(shadowbane) hi_res hinar_miler imminent_anal knot larger_dom laundry_machine machine male male/male mammal mastiff molosser penis penis_size_difference rottweiler saanen_goat shaded size_difference smile washing_machine yagi_b.
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