FURVERT!

anthro areola balls biceps big_penis biped bird_dog canid canine canis countershade_fur countershade_tail countershade_torso countershading domestic_dog erection fingers floppy_ears fur genitals glans golden_retriever humanoid_genitalia humanoid_penis hunting_dog mal_lock male mammal mark_(mal_lock)muscular muscular_anthro muscular_male nipples pecs penis quads retriever simple_background solo tail vein veiny_penis white_background