Rule 34 Dev - anthro big_muscles biped black_clothing black_shirt black_tank_top black_topwear clothing duo fur heart_symbol hugging_head laugh male muscular muscular_anthro muscular_male romantic romantic_couple shirt tank_top topwear white_body white_fur nomifuki canid canine canis mammal wolf 2024 greyscale hi_res monochrome|21819856030