.. uhh...” I paused, realizing where the sentence was going and turning red.“Reproduce with you?” Tami offered helpfully, which caused my face t... turn more red.“Yeh. You said you thought they would continue to change until we were biologically compatible again.”“I said I thought they were, and I still do. But its more than that. They’re not the only ones still evolving. You are too.”“Really? But, I thought I was the next evolutionary step already.”“We haven’t been sure, but I think you’re still. Her excuse for being so wet was, "I've been constantly horny since my birthday and so I'm always wet and ready for you."Yeah! Right! And the looseness?I got home from work on the first day the tape recorders were in operation and went straight to my basement workshop. I played the tape that was hooked up to the phones and heard Kathy make a date with Terry for two in the afternoon at our house. Kathy was out someplace so I ran up to the bedroom and got the tape out of the recorder and took it. She had never seen a cock before, and the sight of his large silky head, rock-hard shaft, and smooth-shaved balls caught her eyes as if in a trance of sexual energy. Her eyes followed his lustful member as he walked it around the bed and held it right next to her face. "Kiss it," he commanded her. She nodded a little, and still unsure of herself, parted her lips for the penis that was now barely a centimeter away from her face and placed a long, careful kiss on the tip of that silky. My hand found her wet dirty cum stained thong on the floor. The crotch area was soaking wet with Bob`s semen.Then I rubbed my cock head on that tiny piece of cloth and soon I felt my own orgasm coming. I could not hold myself back any longer and I covered my dick with the crotch of Anita’s panties and unloaded my seed there…When I awoke early in the morning; Ana was not there on the other side…I quietly got up and listened at the open door. I could hear him talking quietly and her giggling.