As she lowered herself onto me, I watch the tip of my cock spread her tight little pussy lips and work his way inside her, her wonderful wet hot pussy...engulfed my seven and something inches of hard man flesh ever so slowly at first. When half of me was inside her, she dropped onto my pelvic region hard, driving my cock completely up inside her hot wet velvet man pit; I could feel her cunt spreading around my dick like a soft hot glove. Her body did a little sputter, which wiggled her insides. My 12-year-old son lagged behind and slowly came over to hug his grandmother.“Hi, Grandma,” he said with considerably less enthusiasm than his younger brother. Nevertheless, it was not enough to raise suspicion, and it certainly was typical of a seventh-grade boy.“How is everybody?” My mom continued to ask the boys. The youngest talked a mile a minute. This was good, because words would’ve had to be pried out of the oldest.It was early summer and he was upset to be inside right now as opposed. There was no hesitation."Right now?" Yes!" she said instantly, and spread her legs."That's crazy," I said, but I got between her thighs anyway."I know," she said, reaching for my penis, and bringing it home.She groaned as I slid into her in one, long thrust, and pushed my pubic bone against hers."I want to do this forever," she gasped. "Please don't leave." I have to," I said, as I moved back and forth. Suddenly I was ready to spew."It's not fair," she whined. "I just got you, and now I have to. Where we were staying was not a naturist resort but a family hotel with only a few of us going topless around the poolside. Lynne didn’t go topless and in fact, she was quite shy. She was spending the week there with her mum and her four year old son. Lynne was a single mum, with short mousey brown hair, fairly rough complexion, quite petite with small tits and a tiny arse, which I was determined I was going to enjoy. We hit it off straight away but despite my subtle innuendo and more direct.