FURVERT!

4_toes all_fours anthro antlers anus backsack ball_gag balls biped black_body black_border black_fur blue_body blue_fur bodily_fluids border bound canid canine feet fox fur gag gagged genitals grey_background hair horn looking_back male mammal pawpads purple_eyes purple_hair simple_background solo submissive submissive_male sweat toes yukiin