Jbalogna

Ok...so.... I am very, very interested in swinging, specifically with another girl. I have been married for 8 years, we are very happy, have kids....the whole thing. A few years ago I told him I wanted to have a threesome. He told me he didn't want it in fear emotions would develop. So, I dropped it. But...I am very interested. What is a good way to ask, explain, etc. that my chances would be better for him saying yes!