I didnt know what to say, but then I blurted out yes but I had to be there to watch and participate. We looked at each other and we had no idea about ...ow to make this happen. The next weekend was a party at a friends house. You wore a very short red mini dress and no bra. We went and were having a good time. Later your friend from the costume party showed up. He came right over to us and introduced himself as Mark and said he was glad to see us. You told the old Mae West joke about are you. I worked the rest of the day with that damned image on my mind, half distracted and lost with the vision of her oh-so-tan six-pack belly newly firmed with her exercise program. It's not as if I hadn't seen well-toned bodies before, being a physical therapist and all; well trained athletes and workout fanatics were my stock in trade. Yet the image of her smooth skin was burned into my consciousness, staying with me well after I went home and occupying my thoughts well into the first few stages. The excited twin pushed his rampant young cock forward then and made the first exquisite contact with Carolyn's velvety cuntal flesh, worming the smooth rubbery head of his slender penis further and further upward as he advanced."Ooooooohhhh... !" Carolyn responded, the boyish cock tantalizing her tormented cunt until the young blonde's helpless whimpers filled the entire bedroom. And then finally, Tim thrust the thickened tip of his surging penis into the flowering entrance of his stepmother's. I might need a little more...”“Hmmm?”She was curiously shy, even blushing – not a flush, not yet. “Your - your fingers. Just inside.”“Like this?” I slid two fingers in gently, curving them up, feeling her wrap around me.“Oh!” Her hips surged up. “Not – not so deep.” Her hands reached down, scrambling. Found my wrist, pulled back gently. “There. Just there. Moving just a little. Yes ... that’s it...” She bit her lower lip, teeth white against her skin. “Yes ... keep going...”I found a kind of.