Tiger Wood's and other John Edwards mistress speak on callywood.

A mistress is a man's long-term female lover and companion who is not married to him, especially used when the man is married to another woman. The relationship generally is stable and at least semi-permanent; however, the couple does not live together openly. Also the relationship is usually, but not always, secret. And there is the implication that a mistress may be "kept"—i.e., that the man is paying for some of the woman's living expenses.