Rule 34 Dev - anthro armpit_hair balls body_hair clothed clothing erection foreskin fur genitals hands_behind_head humanoid_genitalia humanoid_penis ilp0 jockstrap jockstrap_only male mammal monochrome muscular muscular_anthro muscular_male nipples open_mouth penis signature simple_background solo teeth tongue topless underwear underwear_only unknown_species white_background|12603549224