FURVERT!

all_fours ambiguous_gender ambiguous_penetrating ambiguous_penetrating_female ambiguous_penetration anthro arms_tied badnik big_breasts blueberrygrizzly blush bound breast_expansion breasts buzz_bomber chain chained crossgender duo eulipotyphlan expansion female female/ambiguous female_penetrated greyscale heart_eyes heart_symbol hedgehog hi_res huge_breasts legs_tied machine mammal monochrome mtf_crossgender nipples penetration sega sex sonic_the_hedgehog sonic_the_hedgehog_(series)thick_thighs tongue tongue_out wings