We have this sex game where everyone faces a challenge every week. This time I proposed to my girlfriend to have sex in a public place. As we had to travel, we took the opportunity to meet the train challenge. It was a night trip and the cabins were closed. Of course, we wanted to have a souvenir, so we put our cell phone to register. We locked the door and had sex. We couldn’t make noise, it was the hardest thing because I wanted to scream with pleasure. And it was also fun to keep his cock inside me while the train moved a lot.