Explore the alluring world of Stamp Collecting Straight Man: The Promiscuous Couple, also known as 集郵直男之淫亂情侶, a thrilling web novel in Chinese. This captivating story immerses readers in a blend of ecchi, romance, smut, and yaoi genres, offering a unique and provocative reading experience. With tags like incest, modern-day settings, R-18 content, and threesomes, this novel pushes boundaries and presents a daring narrative that will leave readers intrigued and captivated.