S.I.N. Books in Order

The S.I.N. series follows the Sharpe brothers, three wealthy men tied to Sharpe International Network, the luxury-resort company their family built. The money is real, the public image matters, and the brothers know how to close a deal. Their personal lives are another matter.

Each book is an interconnected standalone.

Last Resort begins with a no-names hookup that becomes very inconvenient when the heroine learns the man from the night before is her new client, Callahan Sharpe. A work assignment in the Virgin Islands puts them in close quarters while Callahan tries to complete a project that matters to his late father’s legacy. The romance has a workplace boundary at its center, plus the question of whether either of them can keep things casual.

In On One Condition, a different Sharpe brother returns to Cedar Falls, Montana, to get a new resort approved. The job means spending time in the town he left behind and facing Asher Wells, the first love he never forgot. It shifts the series into second-chance territory, with old hurt, unfinished history, and a small town that makes avoiding the past impossible.

Final Proposal brings Fordham Sharpe together with Ellery Sinclair after they meet during a stormy night at a hotel bar. Their surprise partnership on a hotel transformation project gives them a shared goal, but also makes a relationship complicated. Both are dealing with family pressure and unresolved pieces of their pasts, so the story asks whether professional success is enough when the rest of life is still on hold.

The books share the Sharpe family, the resort business, and a polished world of hotels, travel, and high-stakes decisions. Still, the emotional conflicts are personal rather than corporate. These are men used to power and control who find themselves drawn to women willing to call them out, set limits, and expect more than a grand gesture.

The tone is sexy contemporary romance with billionaire trappings, forced proximity, workplace tension, and second chances. Start with Last Resort to meet the family and company from the beginning. Readers can enjoy each couple’s book on its own, but reading in order makes the brothers’ appearances and the wider Sharpe story more rewarding.