SquirmingSub said:This reminded me of an experience in my past; when my Ex-Wife and I first married, we both come to an agreement up front that she would be a Hotwife from day one of the marriage. She selected her first lover and he was her ex-husband. Similar to your situation, she lead him to believe that I didn't know what was happening between them (seems he liked her as a cheating wife) and she had always enjoyed their sexual chemistry. He had remained friends with her step-brothers and at some point he began to brag to them about his conquest of his ex-wife.
In the years that followed, she had a number of lovers, some mutual friends, and even the man that was my than boss. She would attend business events as his plus+ and he would always keep her body full of his cum.
That is a hot story. The wife letting her ex fuck her is a hot scenario. Kate's ex had also remarried. We had the added incentive that Kate really does not like her ex-husband's new wife. Kate was happy to try to show her ex a better time in bed than his new wife could. Kate loved sending him home with his balls drained.
I liked the psychological aspect that Kate's ex-husband thought that even now that she is married to me she just could not live without his cock. He never knew that it was my idea that Kate start letting him fuck her again. I think that Kate's ex liked the 'cheating' aspect of the situation too.