Ask Dan & Jennifer

Well, seeing as this is an up and coming event you have time to talk to your wife about it and see if it's something you both of you really want. As for the other couple, I think there's a few ways you can approach this... But you don't want to assume they want it too. That can be dangerous to your friendship if they just wanted a vanilla vacation with their friends. You may want to poke at the subject beforehand, asking about the bedrooms or something.. just to kind of test the waters. Depending on how strong your relationship with them is, you could also come right out and say something like, "OK, I'm just curious, are you guys thinking about swinging again? Because we were...." This way everything would be out in the open and no wondering. But, if they're the skiddish types that could make for an uncomfortable week.

You could also go on vacation and maybe suggest a game.. strip poker is always fun.. or something like that (I like twister... gets people touching and limber lol). Then see how the moment plays out... the downside to this is you might be all worked up and ready and they're not into it... or, if you do end up playing and they weren't sure about it, it can cause tension.

If it were me and I had that gut feeling that they wanted it too I would try to be very open about it. Of course, most of our non-swinging friends know we are, and they're always curious and asking us about it... so that creates an open line of communication to begin with.
I think Dan and Jennifer did a good job explaining a similar situation in this video.

I hope this helps you somewhat. Just remember to relax and enjoy yourself. The energy and presence you present will have a major impact on how this is received from your friends. If you are timid and wishy washy on it it's less likely to happen. Likewise, if you are overbearing or forceful on it, it's less likely to happen and more likely to loose them as friends.

If I were in this situation, and interested in playing with them, I would go on this expecting a vanilla trip but planning for more. Once there, you can flirt and joke around and see where things go. Watch their body language and see if they are flirting back. If not, then back off.

And if you guys do end up playing together, make sure that you talk with them the next day - things only get weird if you let them.

I would never force a situation like this - if it doesn't flow and there's no spark, no harm done. Have fun anyway.

We have a lot of friends that we would never have sex with, but still have fun flirting and joking around. That's what we really like about people swing. They are totally open minded and really know how to have fun!