Rule 34 Dev - anthro anus back_muscles border bottomwear bottomwear_down butt clothing footwear hand_on_butt looking_back male mostly_nude muscular muscular_anthro muscular_male perineum rear_view shoes simple_background smile solo standing white_border black-kun pj_(pittiepj) canid canine canis domestic_dog mammal pit_bull 2021 hi_res|12550421940