It's best if they have my entire room for privacy" she quipped."You've got to be k**ding…have you seen the size of my bed" I said hinting to the fac... that it's a single not meant to fit two people."Ohh grow up and stop being so selfish...it's only three nights, I think you'll survive"She replied throwing her knapsack of stuff on the floor. Clearly there was no getting out of this, she was here to stay.Now, I have nothing against by sister, she's 21 I'm 19 and we have the type of relationship. Who knows why it started and, in the end, who cares? All that matters now is that the people left alive after the bombs finished falling gathered in the remains of an underground military complex to protect themselves from the fallout. It became known as the Vault. The place of protection for the future of humanity. Your skills as a city planner immediately put you in a position of authority, you knew how to administrate the workers and to allocate the supplies stored in the facility and that. How did he know?....John said he felt let down. That hurt more than any thrashing she was to receive. He loved her but she had to obey by the rules they had agreed. One captain in the relationship. One head...One leader. She knew what to do next. John ordered her upstairs to wait for him in his study. To take off all her clothes below her waist. To be quiet and face the corner. He needed to calm down. He wouldn't punish her while he was angry. John arrived shortly afterwards and sat in his big. Her eyes got big as I then explained what a blowjob was. When got to the part of the man cumming, she said that was another word she didn’t understand. Not knowing to how ask discretely, I just went for it and asked her if she has ever masturbated and had an orgasm. Gina’s face turned the deepest shade of red I had seen and she said no. Then I tried to explain what an orgasm was and what cumming meant. The look on her face was obvious confusion and I sat there trying to figure out how to.