Rule 34 Dev - 16:9 2021 3d_(artwork) anal anthro big_dom_small_sub biped canid canine canis conditional_dnp detailed_background digital_media_(artwork) dominant duo fox fur genitals hi_res knot male male/male mammal oral paws penetration penis pxlfur rimming sex size_difference smaller_male smaller_penetrated text url watermark widescreen wolf|5811226376