FURVERT!

3_toes anatomically_correct anatomically_correct_anus animal_genitalia animal_penis anthro anus backsack balls bdsm bedroom_eyes big_balls big_nose big_penis bondage bound brian_griffin butt canid canine canine_genitalia canine_penis canis domestic_dog erection family_guy feet floppy_ears fur genitals grey_background knot looking_back male mammal narrowed_eyes open_mouth penis pink_anus pink_penis pink_tongue presenting presenting_anus presenting_balls presenting_hindquarters q-blackbun raised_tail rear_view seductive simple_background solo suspension tail tail_anus toes tongue tongue_out toony white_body white_fur