I walked into the living room and sat by little Parker as we watched his movie. Emma’s bedroom was adjacent to the living room and the door was op...en. I looked in but couldn’t see her, but I could clearly overhear every word she said. She was on the phone and the conversation immediately caught my attention. “I was giving a physical yesterday at the doctor’s office and my patient was a real stud. I couldn’t wait to check his balls and have him do the cough test. He was 6’5” built. She screamed loudly as I forced my dick fully into her, deafened by lust.“Are you alright?” I asked as I stood behind her, my cock lodged in her asshole. I was worried for my sister; I thought I might have hurt her.“OH! GOD, YES! This is AMAZING! FUCK ME, NOW! FUCK ME HARD!”This was followed by the loudest screams that I had ever heard from her, in all of our previous sexual exploits and possibly even in her whole life. I pumped my cock into her as far as I could, and then pulled back until I. I heard the two women whispering as I put my clothes in the washer. Then I came back in the kitchen."So did you two have a lot of fun shopping in Chicago?" I asked trying to act normal."It such a big city and there are some wonderful stores on the Miracle Mile! The food was fantastic and we did have an awesome spa treatment! It was fun right Bev?" Melanie asked my mom but her mind seemed to be elsewhere."Well I have some reading to do so I'm going back upstairs. It was nice to see you again. And he was bringing me to orgasm soon, I could feel it.My orgasm came soon after Adam's and I got off him and leaned down to kiss his beautiful, wet and smiling face. Amy was down licking the traces of cum off his cock as he fingered her kneeling next to him."I want your tongue now, Adam, are you up for it?" asked Amy."You gave me such a great cum that I want to give you one, Amy, bring that beautiful little pussy to me."Adam:I decided at lunch to take one of the pills that Kristen gave me,.