The Unhoneymooners, written by Christina Lauren, is a hilarious contemporary romance novel. It tells the story of Olive Torres, who goes on her twin sister's honeymoon with her nemesis, Ethan Thomas, after everyone else falls ill from food poisoning. As they navigate unexpected situations together, their initial animosity turns into a sizzling romance. This book is filled with witty banter, laugh-out-loud moments, and explores the power of second chances.