Rule 34 Dev - 1boy 2013 4_toes abs anthro balls big_penis black_hair black_nose black_pawpads black_penis black_tongue bondage bound canine canine_penis claws erection fasttrack37d fur furry grey_fur hair knot kravn looking_at_viewer male male_only mp3_player muscles naughty nude pawpads paws penis pose precum room sitting sofa solo spread_legs spreading suggestive tongue wolf|1394812736