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anthro barefoot bdsm black_nose blue_background blue_eyes bound briefs briefs_only canid canine clothed clothing detailed_background feet hair hands_behind_back hands_tied heterochromia leomagna long_hair male mammal monotone_briefs monotone_clothing monotone_underwear nonbinary_(lore)pink_hair red_eyes rope sai_wu simple_background sitting smile solo tighty_whities topless underwear underwear_only white_briefs white_clothing white_underwear y-fronts