Rule 34 Dev - angry avatar_the_last_airbender azula beach biting_lip black_hair breasts breasts_out brother brother_and_sister burn_scar close-up crown_braid dark_hair dialogue duo duo_focus face_to_face feet feet_up female fingering fire_nation fireplace footwear functionally_nude functionally_nude_female implied_fingering incest kifo legs_up muscular older_brother older_brother_and_younger_sister outdoors painted_nails partially_clothed partially_undressed pixiv prince princess red_lipstick red_nails royal royalty scar shirtless siblings sister sweat sweatdrop sweating sweaty sweaty_body teeth teeth_showing teeth_visible tied_hair topknot topless younger_sister zuko|8321654224