Rule 34 Dev - 10:16 1boy abs anthro balls biceps big_balls big_penis black_underwear canid canine canis canyne_khai canyne_khai_(character) clothing domestic_dog erection genitals german_shepherd hand_on_penis herding_dog hi_res humanoid_genitalia humanoid_penis male male_only mammal masturbation muscular muscular_anthro muscular_male nipples pastoral_dog pecs penile penile_masturbation penis public solo underwear vein veiny_penis|5273090656