I pulled my hand away again, "You okay, Sam?" I asked."K...Keep going..." Sam said, "I think I'm learning something..." She then began to unbutton her...shirt as I rubbed around her slit some more. I gulped, my mouth felt dry. I couldn't deny that I was enthralled by this experience, too. Sam moaned again as she undid her bra, her large tits flopping out. She stepped back and lay down on my bed, the bottom bunk."Come on, Tryn," She said, now clad in only her socks and her skirt and underwear. She put it into her mouth, using her tongue to tease the head as she swirled it round, then she went fully down to the base, she held her head there pressing on my arse cheeks to keep the seven inches in. Whilst there she licked my balls a few times. "Oh my God!" Was all I could say, I could feel myself wanting to cum. Then she removed herself "you better cum in my mouth, I don't want any on my shirt, face or glasses" she demanded. "your wish is my command" I replied. With that she shoved it. I heard a noise and sat bolt upright in bed. I guess living alone made me surprised to hear anything. I realised it was Trevor coming home. I looked at the bedside table clock. It was 11pm. I was fearful. “God I hope he doesn’t come into my room” I thought but I heard him walk down the hall and into the spare bedroom. But my mind was buzzing and I got myself off again before I fell asleep. I was up early and cooked breakfast for Toby. I hadn’t expected to see Trevor so early but there he was.. It wasn’t crowded at all. I think there were only 10-15 people in the whole bogie. We were alone in our compartment. There were 2 girls next to our compartment. We couldn’t see other people because they were probably at the other end.We settled down, had our food and talked for a while. We were sharing the same blanket. She was sitting near the window and I was beside her. I had my laptop with me so we decided to watch a movie. She leaned her head on my shoulder.After a few minutes, she started.