My parents often commented upon ‘how nicely they played together’, they liked Charlotte! I was glad, it made it easier. I thought Charlotte was ...ery pretty, she was very skinny, with brown eyes and brown hair cut in a short bob. We were quite similar really, only I had blue eyes and very long hair.Anyway, there were a lot of different games we made up, but we had our favourites that we played regularly. This particular afternoon we decided to play ‘slaves’. In this game we would take it in. Behind us were all the other professors in the English Dept. Alexander tried distracting me with a story about something that happened at one of the frat houses last weekend, but I kept sneaking glances at Kennick. It was then that I realized he had a skinny black tie on. I looked down and shut my eyes before letting them roll back. Ties were one of my weaknesses. I had no idea how I was going to make it through the hour long session without touching myself or jumping him right then and there.. Once inside he inserted the key....."Wait.....Bitch stand," he commanded Penny.I knew he meant Penny because she was his bitch and I was his sissy. Ifelt the key return to the lock and saw Master move back to his desk. Soit was Penny who would be locking up my sissy pussy! The humiliating actwas not lost on me and I groaned. She turned the key and I felt thestrange sensation as it grew inside me., At its max I groaned again atthe aching fullness."Kneel," Master commanded.We both got into. She pulled my sweats and underwear down at the same time. She knelt down and took my hard cock into her mouth. She sucked it for not even a minute then pushed me onto my back onto the couch. "I don't like cum in my mouth." She said as she straddled me and placed her sweet pussy right over my cock and then lowered herself down, my cock disappeared into her wet snatch. "How does that feel?" Tracy said softly looking at me with those same sexy eyes. "Wonderful." I replied. "Is this your first?".