Between quiet bookshelves in gwak gwak, she hikes her skirt and leans against the stacks. Fingers slip under cotton panties, rubbing swollen lips while whispering “Shh… gwak gwak”. The danger makes her wetter; she bites back screams of “gwak gwak” as she comes standing up, juices running down her thighs in the silent thrill of secret “gwak gwak”.