I remember it clearly. The day she came, the winds were coming in from the east and we were a bit worried. The nanny came right up to our room. We hadn't remembered seeing her before. She locked the door and introduced herself as Mary.
We introduced ourselves and made conversation. Eventually she asked us what we knew about sex. I replied that it was the thing you did for babymaking.
Not if you're lucky, she said. Moreover, there had to be some fun in it, otherwise it was just wrong. We were confused, so she asked us to undress. After we curiously did so, she did too.
We are all nude then, and Mary launched into a series of speeches more informative than anything I would ever hear at school. She told us how to fuck a vagina, an arse, and a waiting mouth. She talked about how sometimes you can spot birds having sex, and I suddenly realized that I had seen it before. We were taking all this new information in with interest, and with the sight of her naked body, it made the most wonderful feeling.
She then moved on to the topic of self-pleasure. She pulled something out of her bag- a very big dildo, I was surprised it even fit in there. Mary walked over to our full-body mirror, crouched down and then stuck it right up her pussy. We were surprised at this, it looked like it would hurt. Nevertheless, she pulled it in and out at a great pace. In about a minute, we heard her singsong orgasm. I tried doing it with my fingers, I came quite quickly. Mary smiled, knowing she had done well.
At the same time, Michael was playing with his dick, apparently not having the best of luck. Mary came over and took his hand off. She presented him with lube. He eagerly rubbed some on his flaccid cock and watched it get hard. She was in a good mood, so she opened her mouth. He slid it into her waiting jaw. It was funny, the lubricant made it go down with no trouble at all. He soon came into her mouth. It was most delightful, she said.
Oh, you really should have seen it. It was the first time either of us had done anything sexual, and what an introduction. I still have no idea where Mary had learned any of it. Wherever it was, she had learned well. For the entire morning, she let us experiment on her, on each other, and with ourselves. She never said no or anything like that.