It was time to place the hot knife on the butter. I got up and smooched her and inserted my tool into her pussy.She was breathing heavily. I started s...ow, and she was smiling and looking into my eye. After approximately 10 minutes of slow fuck, I built the pace. I started fucking her harder and deeper. She had closed her eyes and crumpled her bedsheet with both her hands and bit her lips.I fucked her in a missionary position for the next 20-25 minutes fast-paced. She was going louder with her. I could feel she was getting more used to it though and I could go deeper and deeper. I put both hands on her hips forcing her down sometimes. If she was doing well I would also caress her pussy and feel her twist under the pleasure. She wasn't going to become a deep throat expert overnight but she certainly had made a huge progress already. I congratulated her and called her a good bitch, a proper slut in the making, all the while having my finger in her pussy and giving her pleasure. It was. “How’s that for your fantasy coming true?” she asked.“Babe that was fantastic, want to go for seconds?” I asked.That put a huge smile on her face and she said, “Sure, maybe we should make it last all night.”Well with two loads of cum inside her and the real possibility she was either caught or had been caught continuing on wasn’t going to make her any more pregnant. So after a quick bathroom stop for a clean up Karen came back to what was becoming a marathon three-way night.Over the next hour. I think I would really like that." Now that you point out that aspect of our possible relationship with her, I think I would like that too. She would have the best of worlds, a big sister and a big brother to whom she could come for advice," I told him"I hope that happens if we see her often enough," Rory said with a smile, "it might also give us some practice for the time when we start a family of our own." If you are so keen for that kind of practice," I told him with a giggle "I will let you.