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1:1 abs anthro canid canine canis chance_(chancewolf)double_penetration double_vaginal duo female fox furball furniture genitals hi_res knotting male male/female mammal markings multi_genitalia multi_penis open_mouth penetration penis red_fox sex silver_fox size_difference tail true_fox vaginal vaginal_penetration vulva whisker_markings whiskers wolf zeitgeist