FURVERT!

2012 anakuro anthro anus backsack ball_gag balls bdsm bondage bound butt canid canine collar cropped digital_media_(artwork)fox gag gagged genitals greyscale jasonwerefox leash leather line_art looking_at_viewer looking_back male mammal monochrome nude perineum presenting raised_tail red_fox solo submissive submissive_male tail true_fox unfinished whiskers