5_toes all_fours anthro anus ass_up back_muscles backsack balls bed bedroom_eyes big_balls big_butt black_balls black_body black_fur butt claws feet fur furniture genitals humanoid_feet inside looking_at_viewer looking_back looking_back_at_viewer male muscular muscular_anthro muscular_male narrowed_eyes nude nude_male on_bed perineum pillow plantigrade presenting presenting_anus presenting_balls presenting_hindquarters raised_tail seductive smile soles solo thick_thighs toe_claws toes anonymous_director canid canine canis mammal wolf