FURVERT!

absurd_res anthro black_glans black_penis bound canid canine canis chain cole_canine cuff_(restraint)domestic_dog dungeon genital_piercing genitals glans handcuffs harness hi_res humanoid_genitalia humanoid_penis kneeling knot kopkins leash male mammal mask metal_cuffs mostly_nude mostly_nude_anthro mostly_nude_male muscular muscular_anthro muscular_male penis penis_piercing piercing prince_albert_piercing prison restraints ring shackles solo undressed wolf