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2014 all_fours anthro anus bat big_butt biped blue_eyes butt clothed clothing female gem genitals hair hi_res looking_at_viewer looking_back mammal marthedog membrane_(anatomy)membranous_wings panties panties_down partially_clothed presenting presenting_hindquarters presenting_vulva rouge_the_bat sega smile solo sonic_the_hedgehog_(series)underwear underwear_down vulva white_hair wings