Create an image of a young woman with medium-length silver hair and striking purple irises, dressed in a formal military uniform, sitting in a futuristic train. She is seated in the lap of a taller man in a flightsuit or working wear, nestled close to him. Her expression reflects an internal struggle as she tries not to let her arousal show to the sparse people around them. The woman appears flustered yet quietly enjoying the intimate contact, subtly biting her lip or blushing. The futuristic train setting should have sleek metallic designs and soft lighting, with a few other passengers in the background, dressed in military uniforms or casual attire, unaware or politely ignoring the couple.