Rule 34 Dev - abs anthro balls big_penis bottomwear clothing erection genitals glans humanoid_genitalia humanoid_penis male muscular muscular_anthro muscular_male nipples penis plantigrade shirt shorts solo speech_box topwear nudog mammal mouse murid murine rodent 2000 black_and_white graphite_(artwork) monochrome traditional_media_(artwork)|19001890495