Rule 34 Dev - abs anthro balls big_balls big_penis caught_in_the_act genitals half-erect humanoid_genitalia humanoid_penis male muscular muscular_male nipples nude penis pubes solo standing three-quarter_view towel vein veiny_penis lewd_bunnie beastars legoshi_(beastars) canid canine canis mammal wolf black_and_white hi_res monochrome sketch|15664468925