FURVERT!

all_fours ambiguous_gender anthro arms_tied badnik big_breasts blueberrygrizzly blush bound breasts buzz_bomber chain chained crossgender duo eulipotyphlan female female/ambiguous greyscale hedgehog hi_res huge_breasts legs_tied looking_back machine mammal monochrome mtf_crossgender nipples sega sonic_the_hedgehog sonic_the_hedgehog_(series)thick_thighs wings