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