Rule 34 Dev - 2020 absurd_res aerosaur83 animal_genitalia animal_penis anus ball balls blush bondage bondage bound canid canine canine_penis canis chains collar digital_media_(artwork) domestic_dog erection feral gag genitals hi_res knot leash male mammal penis piercing quadruped sheath solo tennis_ball tennis_ball_gag|5975216352