Rule 34 Dev - anthro belly biceps book bottomwear chalk chalkboard clothing cute_fangs eyewear fangs glasses humanoid_hands information_board male mature_anthro mature_male muscular muscular_anthro muscular_male necktie pants shirt slightly_chubby solo teacher teeth text topwear motogen canid canine canis domestic_dog german_shepherd herding_dog mammal pastoral_dog 2014 english_text hi_res|8466213700