They know it all

When your daughters, Linda and Lisa, were fifteen and a bit they'd burst into your room unexpectedly while you were in the middle of taking care of yourself to some porn. Needless to say, they'd had more than a few questions about what their mother was doing. A better mother might have deflected them, kept family and fantasy separate, but you were frustrated and they were old enough to know. So you simply explained yourself. Your fantasies, your desires, the whole thing.

Since then, your fantasies been an ever-present and publicly acknowledged part of the daily household.