I have been invited but my husband wouldn't even think about it. SO we and I didn't go.

I've fantasized about it before and I'd love to go and explore one but it's not something my partner would be comfortable with

Definitely not my thing.

Oh shit! I run the risk of being labelled here!
Ok, yes, we went to one in southern England a couple of times a few years back, we were invited via a couple we met on the swinging scene. The first time was going to be "taster" session but we ended up joining in. The second (and last time) was a real revelation for me (I won't elaborate here!) but sadly the place closed down soon after. We never bothered to seek out an alternative as we simply carried on swinging with our original friends until 2006.

Not sure if I'd do it or not...

It's not something I'd be comfortable with right now, but maybe at some point down the road...

A friend of mine went to one in New Orleans. I was so jealous! But I plan to go eventually too now.

Neither of us have ever been to a club like this, and I don't really think we would go. Just not really our thing. Honestly, I didn't realize these kinds of clubs were still around. You always hear about clubs like this operating in NYC in the 70's or something like that.