He knows being watched by someone is a big turn on for his sister, for him too, but she has never added anyone into the act unless it had been agreed ...efore. The sight of his sister now sucking on the boy’s cock, a complete stranger to them, while he slams his throbbing prick inside her used pussy is too much.“Oh shit,” he groans. “I can’t hold on much longer!”Rita pulls her mouth from the boy’s steely member just long enough to respond, “Then just fucking fill me up!” Then she goes right back. Waves of pleasure kicked in, undulating my whole body. I looked at Crystal. She had lifted her belly up, with her head thrown back and eyes shut wide. She let out a loud scream while clenching the bed sheet tightly with her hands as my hot jizz filled up her pussy. Our cum started dripping down her slit as I pulled my cock out, still hard and throbbing. Her red thongs were still in my hands. She sprung up quickly and snatched it from my hands. She put it on in a hurry and ran to the front door.. .” Corey pulled me to him as soon as his bedroom door was locked and pressed his lips against my own. It took me a moment to realize what it was that he was doing but once I did, I pushed him away from me. “What the hell do you think you are doing,” I asked, demanding an answer out of him. “This is sick Corey. You are sick.” Corey looked at me with hurt in his eyes. It took me a moment to realize that I felt bad as well. Was it his look of hurt that made me feel bad, or was it the fact that. Please not talk more of this. Okay mother I replied, and went to veranda to sit and relax a bit, in my mind I had got some sort approval from mother to let brother see my boobs. My plan was to start to tempt him more and more!!So that night I prepared my sleep in more sexy way, I took clean new loose blouse from mother and make sure the top two buttons were opened so that bro can easily get a good view of my boobs hanging there, my skirt was also nice and fresh and had a larger opening where.