My wife is a very attractive lady. One night, a client of hers came to the house with documents for her to sign. We had a few glasses of wine and during the conversation; it transpired that he and my wife flirt. I suggested that they take it a little further and to my pleasure, they started kissing. He exposed her panties. This was a real turn on as I adore women's underwear. He stroked her gently on her panties for a while, until he began to perform oral. My wife was frantic with lust; she asked me if he could make love to her, which I agreed to. I watched as they made love. This was a fantastic time to see my wife so excited. It has been a tremendous boost to our sex lives. Perhaps one day we will do it again.