“Well, this is entertaining ... and rather thrilling. My brother and my sister-in-law, getting it on in front of both her parents and ours! Pretty w...ld, if you think about it!” we heard now, even as Billy’s sister, Elisabeth Guttmacher, walked in on us.“We’re naked, too, Ms. Guttmacher. You just missed some really hot and steamy action, not to mention breakfast, but to what do we owe the pleasure?” I smiled at Billy’s younger sister.“I ... just got my DNA test back. Father ... Mother ... who am. I saw her big boobs so close to me as her boobs were just a centimeter away from my head and it generated a heat wave inside my body. I became thirsty, opened my mouth and she poured Pepsi into my mouth.She ran back to fill her glass and back towards me to pour the Pepsi in my mouth. She used my head as a stopper and her boobs as a bumper to stop her running. Every time it sent a heat wave inside my body and I became thirsty. Because of this, I could drink more Pepsi than others in the given. As I was riding him I could feel his cum seeping out of my pussy. “Oh baby you came already. We’ll have to clean you up and get you ready for the movies.” I said dismounting him and sucking his cock dry. Even after I was done that he was still hard as a rock. I asked him with a smile. “How can you be that hard still?” He laughed a little. “My buddy got me a Viagra pill so I thought we could take advantage of this tonight.” He pushed me down on the seat and pulled my dress back up and started. He was giving up on working anymore, ever. It had becometoo hard. I started sobbing quietly as he told me about the frequentpanic attacks he was getting - the night sweats, his heart rate so highthat he though he was having a heart attack every day. How his doctor hadsaid that if he did not find a way to lead a more relaxed life withoutstress, he may die. How he even contemplated suicide once. He finallybroke down and we sobbed together, holding each other."Baby, you will always be mine," I.