Her Gilded Prison (Daughters of Sin 1)

She was determined to secure the succession, he was in it for the pleasure. Falling in love was not part of the arrangement.

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When dashing twenty-five year old Stephen Cranbourne arrives at the estate he will one day inherit, it’s expected he will make a match with his beautiful second cousin, Araminta. But while proud, fiery Araminta and her shy, plain sister, Hetty, parade their very different charms before him, it’s their mother, Sybil, a lonely and discarded wife, who evokes first his sympathy and then stokes his lustful fires. As Stephen introduces Sybil to every pleasure she’s been deprived of, duty and passion become a deep and mutual love. But with the unexpected arrival of a contender to the estate, Sybil realises that what she's set in motion to save the family might have tragic consequences.