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2010 all_fours anthro areola breasts clothing cybernetics cyborg doggystyle domestic_cat duo echidna fan_character felid feline felis female from_behind_position hair hat headgear headwear heart_symbol in_abyss kneeling lothar_(lotharhex)machine male male/female mammal monotreme nipples purple_background raye_(in_abyss)red_eyes red_hair sega sex simple_background sonic_the_hedgehog_(series)tail