Single mom milf, horny as a pig

I'm a student and on the side, I help out with camps for young people. We have a lot of single parents who are able to give their children a vacation they wouldn't otherwise have. On the weekends, some parents, especially single parents, helped out, which gave them a bit of a financial break. Maren was one of them. On the weekends, we supervisors would drive into town to celebrate something together, although two of us always stayed at the camp because the children still needed to be supervised. I still had a university paper to finish, so I offered to help. Maren said she could be the second person; the young people had earned the evening. At the time, I couldn't have known her real reason. But when the children were asleep, she went swimming, then threw on just a thin dress, sat down next to me, her thigh touching mine as if by chance, and I got hot. But she didn't stop there. It was the hottest sex of my life.