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ailurid anthro bird_dog black_and_white canid canine canis comic dialogue domestic_dog duo english_text erection foreskin futaba_kotobuki genitals golden_retriever handjob hard_translated hi_res humanoid_genitalia humanoid_penis hunting_dog japanese_text male male/male mammal monochrome multiple_scenes mutual_handjob mutual_masturbation namihira_kousuke overweight penile penis ptosis red_panda retracted_foreskin retriever sex takagi_kyou text third-party_edit tight_foreskin translated trouble_(series)