Hawaiian Taboo by Laney Kaye

The Land of the Lei
A plan to get laid
All the best laid plans go astray…
Summoned to attend her parents’ renewal of vows aboard the luxurious Spirit of Ohana cruise line, Lissa is reluctant to leave her job, her home—heck, even her pretend cats. But the newly-diagnosed commitment-phobe is eager to escape the memories of her ex-fiancé. And, according to her bestie, a tropical vacation is the perfect opportunity for a no-strings fling to conquer the fear of being trapped that has the scientist’s knees glued firmly together.
Luck is on her side when she meets gorgeous military man, Nate. The handsome soldier is more than happy to re-initiate her into the flirting game—and take the experiment a whole lot further when they meet up again on the cruise. It seems magical Hawaii will melt the polar icecaps protecting Lissa’s heart.
But Nate hides a secret, one that could see Lissa unwittingly break one of life’s most forbidden taboos. When she discovers his deception, Lissa has a very particular revenge in mind. But if revenge is a dish best served cold, she’ll have to find a way to combat both the tropical heat—and the fire Nate lights within her.