She happened to be Sandi's height and general build and Sandi had lost weight since her divorce so there was a good wardrobe available to raise her dr...ss standard. Sandi took Mary over to her house and they selected about ten outfits for Mary to wear at work and on those occasions out.Shoes were another thing, but having to buy only a few outfits made more money available for upscale shoes. Sandi knew which matched the clothes already so taking a couple items to the shoe store made it. OH FUCK! I moaned, officially deciding to not fight what was happening. I soon realized I chose wisely when I felt an orgasm build deep within me. Moments later, the first wave of cum flew up from the depths of my cunt. FUUCCCKKKK!!!!! I moaned at the top of my lungs as wave after wave of hot orgasmilk squirted out of me, covering us both in an ever-thickening layer of cum. Nothing better to keep us warm on such a cold night ,). My moans continued echoing throughout the room for a few seconds. I was grunting with each thrust. After about two minutes of hard pumping my ass, David slowed down to shorter deep thrusts. David-“I don't want to cum yet! Not yet...” He was breathing hard and lightly moaning. I felt soo horny being used like a cheating little bitch! My dick was so hard! David-“My God Andy!! You have such a perfect ass and body!!”He slow fucked me for another five minutes, pausing a few times to not make himself cum. David-“I want to finish on the floor doggystyle” Me-“Ok. It'll be fun. Promise."Emily didn't move, though she wanted to run. She wanted to run far, far away, as far from her sick, perverted twin as she possibly could. Her stomach churned and roiled, and for a moment she thought she might be sick. She felt lightheaded and nauseous, and her hands shook ... with revulsion, not with excitement.Emily looked down at herself, not really wanting to ... looking at the outfit she was wearing. She didn't remember putting it on, or how her slimy brother Jack had.