FURVERT!

abs anthro balls biceps big_balls big_penis black_body black_fur black_hair black_nose butt canid canine canis castbound claws clothing domestic_dog erection footwear footwear_only foreskin fur genitals glans grey_body grey_fur hair huge_penis long_penis looking_at_viewer male mammal mostly_nude multicolored_body multicolored_fur muscular muscular_anthro muscular_male nipples penis red_clothing red_eyes red_footwear red_shoes red_sneakers russell_(castbound)shoes shoes_only shortstack small_but_hung smile smiling_at_viewer sneakers sneakers_only solo two_tone_body two_tone_fur vein veiny_muscles veiny_penis white_hair