"Mr. Johncourrr!" I whined as I approached his desk. "What, STEVE?!" he said as he clicked the mouse on his computer entering grades. "What's my grade?" I asked like everyone else had pestered him for throughout the class. "Uhhmmm....hold on a sec," he said. Mr. Johncour was only in his third year of teaching math at Lingdon High. He was tall, about six-foot four inches tall, with a relatively slender build. He had dark hair that had started to gray just a little with his age, which was about early 40's. "Let me check here..." he said. "72 percent." "WHAT!" I said. "That can't be right." "Well, It is," he said looking through the gradequick. "Well....is there anyway I can get some extra credit?" I begged him. "Hmmm..." he thought to himself. He looked around the room, and everyone else had left. He got up from his desk as I sat in mine, one of those with the seat and the desk connected. As he stood close to me, he said, "Well, there is one thing..." he trailed off, and I noticed he was pushing himself closer to me. He grinned slightly, and that was when I noticed his khaki pants tenting lightly. "What?! Are you really asking me to do that?!" I practically yelled. "Shhh," he urged. "I've seen the things you and Tyler do in the showers after practice," he said quietly. He was also an assistant football coach where I was a captain. He had a point there, another senior and myself frequently had private time in the showers after practice, we just though no one had seen us, and something like this wasn't that far out of reach for me. "How much extra credit will this be worth?" I asked. "Enough," he told me. His crotch but a few inches from my face and slowly tenting larger, I reached up and felt his cock inside his pants. It was pretty large. I squeezed it with my hand a few times before undoing the zipper. I slowly pulled it all the way down, reaching my hand inside. I felt his cock once again through the black cotton boxers he wore. I squeezed the shaft once more before undoing the button fly on the boxers. Reaching through this I wrapped my hand around his shaft which was pretty firm at this point. Due to its immense size I struggled to pull it out of the fly, but finally managed it through. He took a step back as his big cock stuck in my face. I had never seen such a big cock on an older man. It was easily eight and a half inches long and had a seven inch girth. The shaft in my hand, I guided it to my mouth, slipping the head into my mouth, sucking on it slowly. I bobbed on it, going a little further down each time. Once I reached about five inches I didn't take in anymore. I started bobbing faster as he began to thrust. Suddenly, there was a slam outside the room. Even though no one could see us, I immediately stopped. "Shouldn't we be worried?" I asked. "I have a free period right now," he told me. "Well I don't," I told him. "Can we do this any other way?" He thought for a second. "Come back at the end of the day," he told me. I left for my next class as he returned to his desk, his cock still hanging out and rock hard. I placed my books in front of myself trying to conceal the raging hard on inside my own pants. I couldn't believe what had just happened, and I wondered just what would happen at the end of the day.