Rule 34 Dev - abs animal_genitalia animal_penis anthro balls bed biceps big_balls big_penis biped black_nose black_penis blue_body blue_eyes blue_fur canine_genitalia canine_penis erection fangs flexing fur furniture genitals grey_body grey_fur grey_hair hair hand_behind_head knot looking_at_viewer lying male muscular muscular_anthro muscular_male nipples nude on_back pecs penis pose presenting sheath sitting solo tail teeth thick_penis ritsukaxan nolan_(sulfer) canid canine canis mammal wolf 2013 digital_media_(artwork) hi_res|1447523140