FURVERT!

2001 abs anthro balls biceps big_balls big_penis biped canid canine canis dobermann domestic_dog english_text flexing foreskin genitals greyscale humanoid_genitalia humanoid_penis kneeling male mammal monochrome muscular muscular_anthro muscular_male nipples nude nudog pecs penis pinscher plantigrade pose retracted_foreskin sketch solo text