My darling Stephan
I know that when I became your mistress I promised to not ever place any demands on you. You didn't ask for that, I freely offered it. And I'm not making this a demand, honestly: it's just an expression of what I want and need. I no longer wish to share you sexually with your wife. I'm not asking you to divorce her, or abandon your family and children before they are grown. But I don't want you f****** her anymore. I want the joy of knowing that she isn't getting ANY of what you give me. And since she and I know each other, you know that she'll tell me if you aren't f****** her anymore. I want to hear her say, "Stephan isn't f****** me anymore": I want to know, from her, that she isn't getting ANY. I want to know that what we have together isn't being polluted or corrupted by her or that super-hairy p**** of hers. You can stay with her until the kids are grown, you can even sleep in the same bed, for all I care. I just don't want you penetrating her body anymore, and I absolutely don't want you leaving your seed there. I want all of that to myself. ALL of that.