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anal anal_penetration anthro badnik balls bite biting_lip biting_own_lip dildo dildo_in_ass dildo_insertion dildo_sitting duo eulipotyphlan femboy foreskin front_view genitals hedgehog humanoid_genitalia humanoid_penis machine male mammal motobug object_in_ass penetration penis pranky robot sega self_bite sex_toy sex_toy_in_ass sex_toy_insertion sonic_the_hedgehog sonic_the_hedgehog_(series)