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abs anthro balls biceps big_balls biped canid canine canis cuff_(restraint)domestic_dog flaccid genitals glans handcuffed handcuffs hi_res humanoid_genitalia humanoid_penis kamyuelo male mammal metal_cuffs mitten_hands muscular muscular_anthro muscular_male muscular_sub nipples nude_anthro nude_male pecs penis pink_nipples restraints sock_in_mouth solo submissive submissive_anthro submissive_male vein veiny_penis