by Romantic1
Its difficult with this sort of story to maintain erotic interest,some of the Victorian and Edwardian authors could and did write books that dealt with multiple sex,what they did is write stories within stories.An eaxample,there were say 10 main characters,some dealt with a developing lesbian relationship,some incest but few had more than three persons involved at any one time.They maintained the erotic element by teasing until either the son and mother ,or dad daughter or whatever fucked,I am sure you know what I am on about.