Discarded near the trash can behind them, Kudo Shinichi's brain raced when he heard that sound. The sound of water—though not from drinking, and swallowing saliva didn't make sense either. Could it be kissing?
His gaze involuntarily drifted to the lips of the woman in the long dress. They were still a vibrant red, though the lipstick in the very center had faded slightly. He recalled how whenever his dad kissed his mom, he would end up licking all the lipstick clean off her lips.
Besides, he had deliberately rummaged through this lady's handbag just moments ago, and surprisingly, there hadn't been any cosmetics for touch-ups inside. With that possibility ruled out, the lipstick must have rubbed off onto a straw.
Chapter 216