Sharing my wife with the neighbour

Melany and I have been swinging together for years even before we were married. We have attended many swinger parties and couples events. We have even gone as far as going to the adult theatre for some fun. Well our neighbour Derek moved in this past week and Melany had introduced herself and made it a point to tell me how cute she thought he was.
We had a couple of bedroom fantasies about her fucking him and always got off when we did. Then I started seeing him looking at her ass and pussy all the time when they were talking and started to tell her I was sure that he wanted to fuck her. Well she started to hang out over at his house more this past week and she began to notice to that he was checking her out.

Last night we were laying in bed and playing with each other and talking about how fun it would be to bring him in on our action. But I wanted to try something new that we had never done so far. I wanted to send her over to fuck him and then come tell me about it. She got so wet thinking about it and agreed to give it a shot.