FURVERT!

2021 4_toes accipitriform anisodactyl avian avian_feet beak beak_growth bird breasts butt butt_expansion clothing comictf digital_media_(artwork)digitigrade expansion feather_growth feathered_wings feathers feet female gender_transformation grey_background growth human looking_down mammal nipples on_one_leg scuted_feet scutes secretary_bird simple_background solo standing surprised tail tail_growth talons toes transformation underwear wing_growth wings