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anal ancientonyx animal_humanoid anthro aquatic aquatic_humanoid balls blue_body blue_fur cephalopod cephalopod_humanoid coleoid decapodiform erection eulipotyphlan fangs fur genitals green_eyes group group_sex hedgehog hi_res humanoid humanoid_genitalia humanoid_penis hybrid inkling looking_pleasured male male/male mammal mindfuck mollusk mollusk_humanoid nintendo nipples penis purple_eyes sega sex smile sonic_the_hedgehog sonic_the_hedgehog_(series)splatoon spread_legs spreading teeth tentacle_sex tentacles threesome trio vein veiny_penis