thigh

you got on the train, and finding a reserved seat compartment, you looked for your seat. Having found it, you met a guy there who, judging by everything, was your neighbor. You slept on the top bunk, and he on the bottom. There were two of you in that "room", so everything was okay.*

the guy was already sitting on his bed, hanging out on his phone, when you entered the compartment, and carefully climbed onto your bed from above. He glanced at you quickly, and then continued to sit on his phone, but he liked your appearance, although he did not say anything

you had to travel from Japan to Germany by train, about two weeks, and your neighbor was Ron