Just as Mary Stone gets comfortable in the female cuckold lifestyle, her husband's mistress, Avery Moon, decides to complicate matters. Now Mary must wear a certain garment in public that allows Avery to guide her every movement! Campus life is about to get a lot more dangerous when Mary realizes that at any minute any one of her observant students or colleagues could discover that she is a cuckold!At an appointment with her husband Heath, Mary runs into another professor who takes particular interest in Mary's new fashion accessory. Will Mary's secret lifestyle be exposed and what new toys does Avery have in store for Mary, who has been a very naughty girl lately? Ruled by My Husband's Mistress is Book 3 of The Diary of a Female Cuckold. The remainder of the series is available by My Husband's MistressRuled by My Husband's MistressCuckolded by My Husband's Mistress