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age_difference ambiguous_penetration anthro barefoot blush bodily_fluids classic_sonic classic_sonic_(universe)clothing colored_sketch crotch_blush cum cum_inside duo eulipotyphlan eye_roll feet genital_fluids gloves half-closed_eyes handwear hedgehog leg_grab lying male male/male mammal narrowed_eyes on_back on_model one_eye_closed penetration raised_leg sega selfcest silverline sketch smile smirk sonic_the_hedgehog sonic_the_hedgehog_(series)square_crossover