Sarah Thompson leaned against the balcony railing of their ocean-view suite. At 34, she was on a much-needed vacation with her husband, Michael, a week in paradise to rekindle their marriage after years of routine and growing distance. But Michael had fallen asleep early again, exhausted from day-drinking, snoring softly on the bed.

Sarah couldn’t sleep. The heat between her thighs and the restlessness in her soul kept her wide awake.

That’s when she noticed him.

He stood on the neighboring balcony, separated only by a thin decorative screen and some lush plants. Tall, tanned, with messy dark hair, broad shoulders, and a confident smirk that made her stomach flip....