Hello, it's my first time to comment, and I'm sorry if it's kinda late
I love FORBIDDEN by Tabitha Suzuma. I will never ever forget this book because it made me rushed to the bathroom, locked the door, sit on the toilet seat, and cried while hugging the book! I recommended it to one of my friend and she told me that she had the same experience with the book. She ran to the bathroom and locked herself in while crying hard! This is book is so heart-wrenching, achingly beautiful story. But if you taboo topics disgusts you, I don't recommend it. It's a story of forbidden love between siblings. It's so heartbreaking.