FURVERT!

abs animal_genitalia animal_penis anthro biceps biped canid canine canine_genitalia canine_penis canis claws clothed clothing dobermann domestic_dog erection genitals greyscale hi_res knot looking_at_viewer male mammal monochrome morticus muscular muscular_anthro muscular_male navel nipples open_mouth outside pecs penis piercing pinscher pointy_ears pose presenting presenting_penis prick_ears solo standing teeth tongue topless underwear undressing urethra_tip vein