Who brought up the idea of swinging and how? We've always been very open regarding fantasies. On our honeymoon, I took him to a swank strip club. I told him to pick out a lady he liked, and he asked for a couch dance. She pulled me up from the table and told me to come too. She spent most of her time gyrating and fondling me, which was fun. Afterward, I asked him what he thought about adding another female in the bedroom.
He thought about it a second, and said "hell yeah". Nothing happened, but it stayed as a fantasy, with the understanding that if the right lady happened along, it was a go.
We went on vacation to Caliente and were asked to attend a house party for New Years. We had no idea what that meant, at the time, but soon found out.
We talked about it the whole ride back home, and came to the agreement to give swinging a try.