I started swinging back in the early 1990s. At that time I had never touched another cock (how things have changed since then lol). A few years after I had started In was playing with a lady as her husband watched. I was about to start to fuck her when her husband took hold of my cock, rubbed my knob along his wife's pussy and then guided my cock into his wife. After much fun, when I said I was about to cum her husband moved closer and took my balls in his hands (which did make it hard to continue to fuck her) and squeezed my balls gently as they unloaded into his wife. It was an odd introduction to this kind of play but the wife told me that her husband got a real kick out of feeling a guys balls as they emptied into her.
Since then I have had a few guys hold my cock and direct it into their wife.
Since then I have had a few guys hold my cock and direct it into their wife.