I wasn’t able to control my thoughts which imagined her nude, cursing myself in the middle for what I was thinking but feeling the lust for my sexy ...sister’s pussy. She kept moving herself on me in a trance and it was evident from her biting of her bottom lip with her teeth that she was enjoying it too. But we both were pretending as if nothing was happening and that was making me crazier about her. Couldn’t believe my own sister was playing it coolly with me.I cleared my throat to bring her. The girl responded by pulling Trish’s head closer with a gentle but firm press, showing her own desire for pleasure surpassed that of the domineering girl. The girl’s hands had not been still while Trish explored her upper body. They had begun to push under Trish’s nightshirt and were currently undoing the clasp of her bra. Trish started at the sudden release of pressure on her tits, but resumed her exploration, heading steadily towards the twin mounds on the girl’s chest. The girl too wasted. She came out of the bed, and she was in a very tiny shorts, and her legs and thighs are milky white. She came down from the bed and stretched herself. I felt jealous seeing her body :p I assumed she might be 34 24 32. I also have almost same sizes and I do daily exercise to maintain them. This was the first time I saw a woman and felt a strange feeling towards her.We got ready and went to office. Evening I am back by 7pm..And she used to come by 10. Slowly I started going little late to office. We spent the next three days getting prepared. I found a large motor home, and we stocked it with every conceivable survival equipment we could find in the town. The food supply was supplemented with rations from the Guard Armory, along with more weapons, Army boots, camouflage clothing for the 3 of us. Dale seemed to be improving daily, and was conscious for a few minutes at a time. Kristin and I made love at night, and in the mornings, and I continued to be amazed at my luck in finding.