Her ass was smooth and firm. Her breasts were soft and round. As I went for her nipples with my lips I could see a faint glow around her nipples too. ...n stead of being surrounded by her areolas my Christmas Angel’s nipples were surrounded by aureolas. I was drawn to them like a moth is drawn to a candle. Somehow I felt like I was sucking life itself from her wonderful nipples. I had a feeling of euphoria. It was like a wonderful dream or something. I was lost in time and space as I melded with. My sister Tiffany on the other hand is sixteen years old and pretty sexually active. Well that’s what mom calls it. Dad calls her a little slut under his breath.My sister talked me into letting her make a cast of my cock. First I had to undress in front of her and let her shave off what little pubic hair that I had. Next Tiffany mixed up the plaster stuff and undressed herself. That was my reward for her casting my cock. She got naked and let my feel her up. When Tiffany decided that I had felt. She demanded that somebody got fucked and in response he turned round and stuck his arse in the air and held his cheeks to show me his ring. Stepping forward I pressed my rock hard cock against his ring and the knob end disappeared , the girls stood up to get a better view and he pushed back against my cock and it disappeared into his rectum up to my belly in one go. The girls clapped and both wanted to see me fuck his arse hard and fast. The Pilipino came behind me and held my arse while I. Jill finally broke the kiss, grabbing her own boobs as the potion once more catalyzed them into growth, and the cute, perky B-cups she had had for less than five minutes slowly expanded into heavy, majestic, attention-grabbing Ds. Amy watched with pride as her little sister's body continued its erotic swelling, and then slid a hand down between her sister's legs to help jumpstart the change she knew was coming next, nodding approvingly as Jill's thickening thighs squeezed together in squirming.