Rule 34 Dev - all_fours anal anal_insertion ancient-onyx anus ass backsack backside balls black_dildo black_fur brown_anus brown_balls brown_penis dildo half-closed_eyes looking_pleasured masturbation penis raised_tail red_eyes red_stripes ringlets sex_toy shadow_the_hedgehog skates sonic_(series) squatting tiptoes white_background yaoi|2758627360