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