Help me find a book. In the first chapter, a woman ordered a man at KTV, and then poured wine on her chest for the man to drink.

The book you're describing sounds like it could be "After" by Anna Todd. In "After," there are several scenes that involve parties and alcohol, and the dynamic between the characters can be quite provocative. However, if this isn't the book you are looking for, it could also be a scene from a different contemporary romance or erotica novel. If you have any more details about the plot, characters, or themes, I would be happy to help you narrow it down further!