Class was out and I was eyeing one of my students as I could tell he had a big dick. I knew because it was always bulging in his pants and when i mean big I mean huge thick black cock. So anyways I got so worked up this one particular day that I asked him to stay after class as I wanted to talk to him. Soon as he walked in my office I had him close the door and the seducing began. I was going to get his cock out of his pants and that's what I did. I sucked on it, fucked it and sucked on it again. We both came and he came in me bare. after we were done I told him that he better not tell anyone and if he did I would plead the fifth.