Rule 34 Dev - ! !! angry assertive assertive_male avatar_the_last_airbender azula beach biting_lip black_hair breasts breasts_out brother brother_and_sister burn_scar ceased_resistance close-up crown_braid dark_hair dubious_consent duo duo_focus face_to_face feet feet_up female femsub fingering fire_nation fireplace footwear functionally_nude functionally_nude_female implied_fingering incest kifo kissing legs_up maledom 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 shocked siblings sister submissive submissive_female surpries sweat sweatdrop sweating sweaty sweaty_body teeth teeth_showing teeth_visible textless tied_hair topknot topless younger_sister zuko|8397751720