We didn’t have that long. We were on a break.“Shit,” I groaned and lined my cock at my sister’s pussy. She looked over her shoulder, this wild...delight burning in her eyes. She wiggled that ass, begging me to slide into her and fuck her hard. I was so ready for it.I pressed my cock into the folds of her pussy. She bit her lower lip, stifling her moan as her labia spread around my dick. Those engorged petals swallowed my tip. My crown and then my shaft vanished into my sister’s twat.In the. She then lowered her eyes and in the meekest voice I could ever imagine coming from this woman said, "Yes, Sir. I understand."I sort of expected this, but for her to actually respond as she did was still quite the shock. From all the information I had at my disposal I'd come to the initial conclusion (or perhaps it was nothing more than a personal belief or desire of mine) this evening that the reason she was not happy in any of her previous relationships was not because the men were not worth. "There's the comfort after you FINISH hard work, when you can relax with a hot drink and a warm woman on a cold winter's night.Jill, having just taken a sip of tea, snorted it all over her plate."I'm sorry!" she gasped, wiping her nose and trying to dab at spots of tea with her napkin."Don't be," said her mother dryly. "That's what that little offering deserved." What?" asked Zack, sounding definitely injured now. "It's true." It's hopelessly trite," pointed out Lynne."Maybe that's just because. " said Jack. He was still on edge at how much trouble he was already in."No I'm not." she said. She would never have believed she could be so forward, but being in the same room with the man of her dreams, stark naked, with his hardening cock almost within reach made it seem almost normal."You want to ... do it?" he asked incredulously. She wasn't doped up now, and yet she showed obvious interest in letting him do what he thought he'd only been able to do because she was incoherent."Uh huh.".