There was no doubt that my mom was the boss in our house. My dad was a big sports fan kinda guy who liked a drink but he was totally intimidated by my mom. I never thought about it till I was older but how they ever got hooked up was one of life's mysteries. He drove a truck, she taught primary school. She was tall, slim, quite plain, didn't put up with bad language or disobedience. She was severe but good to us and it never occurred to either of us to challenge her authority. All the time I was a kid, I never saw here naked and rarely in her underwear. But she was a teacher and when she judged the time had come for me to learn about sex, she did it properly in a pedagogical way by demonstration. My father was on a trip one weekend when she announced after Saturday lunch that it was time I knew what a boy needed to know. I was puzzled by what she meant and would never have guessed. She led me into the living room and right in front of me took off all her clothes, folding each garment methodically as she removed it, until she was completely naked. Then she told me to undress too. She wasn't in the slightest embarrassed as she described her body to me and the relation of each part of it to sex. Intercourse was normally preceded by foreplay, she explained. The man caressed the woman's breasts, nipples and limbs, in order to excite and prepare her for what was to come, before touching her genitalia. I couldn't imagine her letting my dad do this to her. Now she sat on the sofa with her knees up and her legs spread in order to fully expose herself. She showed me her clitoris which she said was the female equivalent of a man's penis and a little lower down in her wet pink cleft the small dark hole of the entrance to her vagina. This is where the man puts his penis for intercourse to take place, she said. You might wonder what my feelings were during this matter of factly delivered lesson by my naked mother. Surprisingly calm. I wasn't embarrassed at seeing her nude and fully open and I didn't feel sexy. I didn't get an erection even when she took my penis in her hand and said that it needed to be hard to be able to penetrate the vagina. I knew most of this stuff in theory from school but I'd never seen nor touched a naked female. It was indeed just like a lesson. Once we had put our clothes on again, she asked me very seriously if I masturbated. I hesitated. Answer truthfully, she said. There's no need to be embarrassed. It's perfectly natural. I admitted that I did, feeling very guilty as I did so. What I didn't know then was that the lesson was not over. When dad returned, my mother told him after our evening meal that I would sleep with her in their bed that night. If he objected, he didn't dare say so. We went upstairs together at ten o'clock and undressed. Once again, we were standing face to face in the nude. My mother kissed me on the mouth, gently at first and then insistently. Our bodies closed and my hardening cock pressed the tickling roughness of her bush. I want you in my cunt, she said. I didn't now she knew such a word . She led me to the bed and guided me inside her and we came quickly. She held me tightly on top of her so that my cock could not slip out of her. My darling, she whispered. You are my true love. I have waited all your life for this moment.