" It's too late for that," I said as I started pumping her pussy from underneath again."Oh God," she murmured. "Please stop! Oh my God! Please! Please... Oh God, don't stop! Don't stop!" In one breath she went from please stop, to don't stop. She was really back into it now. Her big ass was moving so fast that I could hardly hold on to it, and it was dark but in the shadows I could see her tits bouncing all in front of my face. I was very close to blowing my load and she could tell. "Is this what. Sis said that wasn't what she had in mind "and besides, you're not ready." So the sessions ended.That fall Sis went away to college and my parents had a dilemma. They had to work in the city but there was this now-12-year-old boy who needed supervision. Mom first tried having me stay with neighbors, but they had kids of their own and it didn't work out. Then she tried a couple of housekeepers, women who cleaned the house and did the laundry as well as made my dinner. These didn't work out. K raised her eyebrows in recognition of the fact and gave him an embarrassed look as she bit her bottom lip.The meeting had been arranged weeks in advance to coincide with the 3 of them being in the same country at the same time.They had messaged each other and swapped photos, thoughts and naughty insinuations as to what the 3 of them would like to happen should they ever get to meet. The night had finally arrived; the chosen restaurant was sumptuous with soft furnishings and intimate booths,. I founda rhythm that seemed to work and began stroking her fully, the head would justabout leave her snatch and then slip back in to the hilt with a slap; my ownexcitement again built and I was fully hard again which seemed to get herrevved up a bit and her juices began to flow in earnest, squishing out witheach plunge. My thrusts got harder as I heard her moans turn to pants and felther ass as it bucked against my hips with each penetration. My fingers began working on her tight sphincter.