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2012 anthro balls bdsm big_penis bondage bound canid canine canis dialogue domestic_dog dominant dominant_male duo english_text erection facial_markings genitals head_markings huge_penis hyper hyper_genitalia hyper_penis knot larger_dom larger_male male male/male mammal markings penis questionable_consent sex size_difference smaller_male submissive submissive_male tail text uroboros_lichi