I am married with a child and I am very devoted to raising my daughter. I almost exclusively raise her, while my wife is busy with her projects. She is often away for work, while I work from home and I am a sex model on the side (with my wife knowing that).

To avoid heatwave in our city, I decided to take my daughter to a cooler place by the sea. My wife has a friend with a child near my child's age, with a pretty bad marriage, so she always seeks for company for her and her daughter. So she tried hard to hop in to this small trip and we said ok.

My wife couldn't come with us, so it was me, my daughter, my wife's friend and her daughter.We had a good time, I took good care of the children (I love kids) and it was good. We were all living in the same room (chaos), to avoid big costs.

We stayed there for a week, and I have to admit, a strange bonding happened between me and my wife's friend. It felt like we had these two children together, like we were the couple raising these children, she flattered me with how good father I am etc. And that bonding led to a sort of sexual attention from both ends.

I hadn't payed attention to her sexually, but when I started thinking "what if she was my wife and these our children", I started looking at her differently. We were showering the children together on our swimming suits, we were sleeping really really close and one afternoon the children slept together and we lied on a single bed together. We were waiting for the children to fell asleep so we could go to the balcony.

"Did they sleep?"

"Yes, they slept."

I told her in a breath distance and it was so electrifying that we kissed. Like passionately. And it all started from there. When the children were asleep, we were sneaking to the bathroom to have intense sex for the next days. It was like we were waiting for this the whole day.

It's my wife's best friend since ages. I feel embarrassed, but at the same time I want to have sex with her again.

We got home and we pretended none of this happened.