The Unhoneymooners, penned by Christina Lauren, is a hilarious and captivating celebrity romance book. Olive Torres and Ethan Thomas find themselves on a free honeymoon trip to Hawaii after everyone else at their siblings' wedding falls ill from food poisoning. Despite their mutual dislike, they pretend to be newlyweds, leading to unexpected adventures and undeniable attraction. This enemies-to-lovers tale is filled with humor, tropical settings, and a swoon-worthy romance.