Cassie and I met at college, dated, became serious and eventually married. We were each other’s first love and first lover, and at first we were quite proud of that fact. But, unbeknown to each other, as time went on both of us began to wonder what it would be like to make love with someone else – although it must be said that we were actually looking in very different directions. Neither of us did anything about it, in fact neither of us even spoke about it, but it was there in the background to us both, a little voice wanting to know. Then, at a party to celebrate…