When we were kids I went to my aunt's after school. My cousin and I were alone every afternoon until around 6:30. We had intercourse when I was nine and he was eleven. I was also his 'wife' during the afternoon and prepared his afternoon snack and cleaned his room.

We have intercourse today, he needs me a couple of times a month and I am there for him. His wife is clueless, she can't even see that I am his 'real' wife, not her.