Rob could feel the heat from his sisters ass as he pushed deeper, the sensation different to her pussy, not just because of the tightness but the heat...and the texture of her insides. He finally bottomed out inside her, his pelvic bone resting snug against her compressed ass cheeks. He held it there for a few seconds taking in the scene in front of him and also allowing Chelsea to enjoy the feelings going on in her body. She was indeed enjoying it, feelings she had never experienced overcome. Or maybe better, I like to be naked or nearly naked outside or in public places. I get scared shitless if I think I am going to be caught, but I put myself in situations where I could be caught. I think it is the thrill of knowing that someone could see me that makes me keep doing it.It all began back in high school, my senior year and I was eighteen. I was a snotty little girl back then, always making smart remarks and pissing people off. Then one night my girlfriends had too much and started. "I need a huge favor," I whispered so as not to wake his parents. "I need a ride."I could see the smile in the darkness when he gave a big wide grin. "I'll get my keys and meet you by my car..." With that the window was closed. I really hoped Jess was awake. She had told me over and over i can go to her whenever but I also knew she was a bitch when she was woken up.****We sat in his car as he headed down the street and looked me over in the corner of his eye."You always go out in pajamas?" He. "She brought me to my room and bound me to my bed with all fours. Then Glen came in and whipped me on my ass without any saying to me. It hurt so much but i was not crying. Then he got out and let me sleep. i slept a long time but still awaked as my stepmother came in and untied me."So my dear. you are now 12 years old but your life will now begin and this will be for the rest of your days. I will train you for the next 4 years, so that you are in future a very happy slave of Glen. I know all.