I've still got the jollyold cock," and they all make another mental reassessment of theirseemingly conventional flatmate.Mark gives Chrissy his bed fo... the night and unrolls a futon forhimself. He is prepared for Chrissy not to feel like doing anything ina strange flat, but she seems up for it. She says, "Don't you want to?" Well, yeah, if you want to." Well come on then. I'll try and be quiet if that's what's worryingyou." Oh don't worry about that. No-one'll hear anything."The truth is. They were brother and sister, and it couldn't be known by anybody that this brother and sister pair were some of the hottest and horniest lovers in town. It just could not be known by anyone -- not even a closest friend. They both knew that and both of them kept their mouths shut about the sexual relationship they enjoyed for three years with each other. Neither of them wanted to lose what they enjoyed in bed together, and so Sam and Pete never told another living person what they'd discovered. He groaned and came in my mouth again, that was too much: I came then as well.The feelings were fantastic. He lay down on top of me, his softening cock lying on my face and his face resting on my cock.John suddenly jumped up.“Come on, let’s go home and have some dinner. I’ll call for you later and we can go down to the park” So we got dressed and ran most of the way back home.After dinner I sat reading, but my thoughts were on the events in the coal yard office.I couldn’t believe what we had. “Then we best get started,” she said sauntering over to the throne. “You won’t feel any pleasure,” Jacob offered in meek defense to stop her. “Not true,” she said. “I have already incorporated all of you species pleasure receptors now.”“Including a clitoris?”“Oh human, we are gonna have so much fun,” she said stepping towards the throne. “I want you to repeat what you did last time, and we will see if I’ve done enough with your DNA.”Jacob had no time to prepare as she climbed up the throne..