Wow, this was the question I had been waiting for. She was wanting his big dick, and he was wanting to fuck my mother's little pussy. “You know what...he wants, don't you?”, I asked. She probably knew more than me what he was into, after all she had been chatting with him for a couple of weeks now.“Yea, this is what you wanted, right?” I think she was embarrassed by the implications. If we went through with this he was going to be the Alpha Male. She knew it and I knew it... “Are you wet?”, I. In fact, she had quite the reputation for spending most of the school day on her knees or bending over some desk with her panties down around her ankles.The school principal had recently discovered that the mother’s unshaven vagina was inordinately tighter than the daughter’s in almost every position. He was sort of an expert in that area having sampled teenaged pussies on a daily basis for the entire length of his academic career. His ability to grant multiple orgasms without any effort made. She had long, well-formed legs, it seemed from the tight fitting white cotton slacks she wore, and a very good, firm and well-formed arse. As I looked again at her creamy silk blouse, which now had a number of buttons undone, I could see an exquisite cleavage and obviously good size tits. As I looked even more closely at her blouse it was obvious that she was not wearing a bra and that her nipples were very erect against the soft silk.I had never had an affair with another woman but must admit. Ah... anal..." Vickie stammered with growing humiliation."You let somebody fuck your ass without your mistress' permission?" Yes." Vickie said relieved that the facts were now out."OK, you can use my office to make up your form and print copies of it. Why don't you use my PC," the Coach gestured at the computer setting on his desk, "and make it a really official looking entry form?" The Coach locked the door to his office, "but you have to do it naked, and with my cock up your ass." Vickie.