It took no effort whatsoever to sense the pain and discomfort that permeated those halls; the fear and abject loneliness only a sick child is capable ...f experiencing. There was so much, and it grated on my nerves that I had to ignore them, but a promise was a promise.At the mid point of the second hall was a smaller version of the nurse's station, two nurses behind the single counter that faced another room with shorter cabinets, small green tanks and racks of other assorted medical. She was dumbstruck and unable to speak. I then said, “And you are going to watch and keep your mouth shut!” “Charlie do you have the lube and condoms,” I asked. “Uh, yes I do,” He said. I began stripping off my clothes and told Charlie to do the same. As he removed his clothes, it was obvious he was sporting a huge boner. Actually quite remarkable, since I had sucked him off twice to big orgasms earlier in the day. His cock appeared bigger and harder than I had ever seen. He obviously was. I felt her juices on my balls, not caring that it was my sisters. Only wanting to fill her with my love and my cum now.After I had stopped ejaculating, she stopped moving her hips and leaned her head on my shoulder. I held her tight as we sat there, her on top of my still throbbing cock, her pussy still quaking from her intense orgasm.“WOW that was the best orgasm I have ever had Scott! It has never been so long or deep as that one felt.”“I know what you mean sis; I know exactly what you. Her pussy was perfect around my cock she felt so damn good. I just wanted this to last forever. I felt that I was ready to come but I didn’t want too so I flipped her around and started fucking her from behind. I just stared at her perfect ass and held on to her hips. She took the whole thing no problem. I was goin hard too my thighs were slappin against her ass almost as loud as she was screamin. After a while I felt her pussy clamp down on my cock and start to spasm she was silent for the.