When I was 21 and had just graduated from university I decided to take a month long holiday travelling across Europe. At the time you could get a train ticket that let you take almost any train in Europe for a month. Bargain!
About three days into my journey I was taking a train from Brussels to Athens. It was late at night, hot, sweaty and the train was so crowded there were people standing and sitting in the walkway between the compartments. My compartment was full with a pair of Dutch lads, an old couple from Brussels, a middle-aged man and a Japanese girl who looked like she couldn't have been more than 18 years old. She was wearing her hair in two pig-tails, a small pink t-shirt and matching short pink skirt. Her tennis shoes were also pink and her white socks were edged in a delicate pink lace.
I was sitting back in my seat, opposite the Japanese girl trying to get some sleep when I caught a flash of white. She had let her legs part as she dozed and I could see clear past her, slim athletic thighs to the white cotton knickers covering her mound. I moved in my seat as I began to think about what was between those legs and my dick started swelling.
After a short while the girl got up, left the compartment and moved down the walkway towards the toilets. I sighed and resumed my dozing, listening to the rhythm of the train as we sped throught the night. I shuddered into consciousness some time later when the door to our compartment was opened and the Japanese girl returned.
She re-took her seat and her skirt shifted up leaving me a very clear view of her knickers again. They still looked new and white, but now they also seemed slightly damp. She raised her head from her comic and eyed me, seeing where I was looking and smiled. She shifted again, her legs moved wider apart, her skirt moved further up her thighs, towards her waist.