Rule 34 Dev - anthro arms_out black_background breasts clothing female fusion legwear looking_at_viewer open_mouth open_smile side_boob simple_background smile solo squish thigh_highs thigh_squish twintails_(hairstyle) usa37107692 sega sonic_the_hedgehog_(series) vocaloid amy_rose hatsune_miku eulipotyphlan hedgehog mammal hi_res sketch|21344352155