I reach out to touch it, but as my hand nears, it disappears entirely, giving me an unrestricted view of the hallway which is no longer a hallway: The...darkness had stopped at the edge of a massive round chamber, the other wall of which is at least 300 feet away. Here the floor drops down sharply from my level, forming a deep pit whose bottom is unseeable. The ceiling stretches up into a dome well over a hundred feet above. A bridge of stone the width of the hallway stretches out from my. About three inches of my cock had been out of my boxer shorts so I quickly covered the part that showed with my t-shirt. I was making an awful amount of fuss sitting in my corner and as I finally sat comfortably, I watched as my sister stood up stretching her t-shirt down to her thighs and headed towards the door. She slowly opened the door and stepped out into the hallway.Finally; I thought to myself, alone at last. Now I could watch some of the stuff I originally intended on watching when. " The grassy area around us was filled with other students also taking advantage of the nice weather.Nat smiled sweetly as she pulled her hand away. "When?" Was all she said. "Tonight?" I answered."Where?" I'm in Building J." O. K. Jimmy. I will borrow my friend Rose's car and pick you up around six? Maybe we can have a bite to eat?" Sounds good. I know a little Italian place that has great food." It's a date." Nat said as she rose from the bench, walking away with her cute little butt swaying. I did Cynthia and Kristen together and then I did Fiona and Francine. The girls were all smiles and giggles when we ended up together. Cynthia and Kristen let me in on the joke from the very start. They both wanted the 'Doctor' to give them a thorough exam. I responded that the 'Doctor' was out at the moment; however he had left his thermometer behind. If they were good girls and didn't tell anyone, I'd take their temperature for them. Both girls were very good and they got their temperatures.