FURVERT!

ambiguous_penetration anthro anthro_on_anthro anthro_penetrated anthro_penetrating anthro_penetrating_anthro cuckold echidna eulipotyphlan female female_penetrated group heart_symbol hedgehog hi_res humiliation isprinng knuckles_the_echidna male male/female male_penetrating male_penetrating_female mammal monochrome monotreme penetration rouge_the_bat sad sega sex shadow_the_hedgehog sketch sonic_the_hedgehog_(series)