Maybe I'm weird (and if it's weird, I don't want to be normal), but to see my husband in the throes of passion with another woman, I get this burning ball of excitement right around my belly button that radiates out, stealing the strength from my limbs, makes my hands tingle, and leaves me with goosebumps. I don't care if it's me or her, as long as I get to see him impassioned like that. Swinging is one of the things in my life that has left me feeling truly alive. Of all the things we could regret, swinging is not one of them. They're some of the happiest times I can think of.
And I'm with MacNFries. We started out with the no-kissing rule, but soon realized it was silly: sex by nature is very intimate! So we just embraced it instead, come what may. The sky didn't fall, we didn't fall out of love with one another, we didn't run off into the sunset with a swinging partner. It was just part of the sexual experience. I tend to be very intimate and sensual with partners. I don't want to get involved in your life; I just want you to know that you deserve to feel loved, respected, cared for, etc. I feel this way about everyone; I just don't get to show it to most. Lucky you. And then I'm totally okay with us parting ways and living our lives, richer for the experience.