Becca giggled and hopped onto his lap, her big tits slapping together. The blonde, with all the energy of an eighteen year old, impaled herself on his...dick, her burning ass clenching. I stepped up behind her waiting for the spankings to begin.The ripples of smacks echoed down the line. Veronica's hand cracked into my ass. My hand cracked into Becca's. She groaned, bouncing on Frank's cock. Her pussy slid up his shaft then back down, my husband groaning, his face twisting.The cracks rushed down. I am getting chills just thinking about it now. I've only done it with three people, all of whom were long term lovers that shared an interest in safe condom free sex. We always got tested before and after we'd done barebacking, and we swore to each other that we were a monogamous couple. The moment either of us strayed from these rules bareback sex was over with.Now, like I said, I had discovered bareback sex in college. And it was totally by accident, actually. I had been seeing this guy Jack. ?Now don?t try to kid me,? she said firmly. ?I can?t imagine how hard it must be for a single mother these days. I came out of my divorce very well off, and you and my grandson are the only people I have left in the world to care about.?Tania found herself fighting, and losing a battle against overwhelming emotion. ?Oh, Mrs. Fairchild, I--I don?t know what to say.??You don?t have to say anything,? she said, holding out her arms to embrace the woman who had once been her son. ?But there?s one. So they did some unofficial trading, and Rebecca said our finances were now in better shape.It turned out that Christopher lived less than a mile further out of town, and had to stay home with a baby-sitter all summer while his parents worked. So he asked if he could spend the time at our house, 'cause he was really bored being home during the summer. Our parents said it was okay after talking with his parents, and his dad started dropping Christopher off on his way to work. Christopher usually.