A Sin Such as This by Ellen Hopkins

Tara thought she was finally settling down when she married charming, handsome Dr. Cavin Lattimore, but life seems to be only getting more complicated. During the honeymoon, Tara’s niece Kayla moved into their Lake Tahoe home and quickly hooked up with Cavin’s manipulative, seductive son Eli. In a matter of weeks, Tara has gone from rich, single San Francisco professional to suburban housewife managing her niece’s emotional ups-and-downs, as well as her stepson’s continuing overt advances.

Adding to the family drama, Tara’s younger sister Melody is going through a serious marital breakdown. During a heated argument, her husband Graham insists he and Tara once had an affair. Despite Tara’s vehement denials, Melody is desperate to find the truth… Read more.