Rule 34 Dev - 2014 2boys abs anal anal_sex anthro biceps big_muscles black_nose blue_eyes blue_fur blush brown_fur brown_nose canine duo erection fur gay holding humanoid_penis istani kuugo lying male male_only mammal muscles nude on_back open_mouth pecs penetration penis pose red_eyes sex teeth toned tongue white_fur wolf yaoi yuujirou|1877489680