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anthro balls biped black_nipples black_nose brown_body brown_fur canid canine canis chest_tuft claws comparing digital_media_(artwork)duo erection eyewear foreskin fur genitals glasses grey_body grey_fur hair hand_on_hip hi_res holding_partner humanoid_genitalia humanoid_hands humanoid_penis looking_at_another male male/male mammal multicolored_body multicolored_fur navel nipples noriko_oomori norikowolf nude partially_retracted_foreskin pecs penile penis penis_size_difference penises_touching pink_nipples pink_penis pubes romantic romantic_couple size_difference smile standing tail teeth tuft wolf yunori