A group of French friends, bored with their train ride, decide to liven things up with a game of 'Show Us Yours'. One by one, they flash their intimate parts, giggling and blushing. But things escalate when a young, inexperienced man joins in. His friends encourage him to go further, and soon, he's losing his anal virginity right there in the train compartment, his friends cheering him on as he takes a thick, lubed cock for the first time.