The Accidental Harem - Book Two of The Reluctant Master Trilogy

Rose is in love with her handsome young lawyer, and hates to have him learn about her fantasies of being bound and tortured into submission. But when she find him spanking his secretary over the desk, it seems they might have more in common than she thought. And when she learns that they're actually master and slave, she can dream that he might have room in his life for another. As the three of them work together to save her from her dangerous husband, friendship grows into affection ...
but will the Reluctant Master want to trade up to a harem?