There had been no privacy on the trip. He had to sleep in the room with several other guys. The only time he was alone, at all, was when he was in the bathroom. He kept thinking about his sister, and needing to masturbate, but had never enjoyed masturbating in the shower, so he decided to just wait until he got home. He reflected that he had never gone over 2 or 3 days without masturbating since he was, perhaps, 13 years old. Just being with Jennifer picking vegetables was making his cock hard. He knew that, when he did masturbate, there would be a prodigious load. He looked forward...