So is The fun you have with your spouse at home - just different fun. I've never had as much fun with anyone as I have with Paula. But I like to eat pork too - just not all the time. There are many aspects to the swinger Lifestyle that you can't get at home. Different points of view that you haven't heard before. You meet new people. There is the thrill of the chase. There is confirmation that you are still attractive to people of the opposite sex.
For a lot of women, I think this is the most important factor. They go to a club or swinger event, and all these attractive men want them. Who doesn't like to feel wanted sexually? Sure, they feel needed at home, their Kids need them, their husband needs them, but that is different to being wanted.
Generally Swingers are Great People
You spend your time with like minded people, who for the most part don't have too many hang-ups. They don't waste time trying to be politically correct. If you meet someone who has a great figure you can compliment her. You won't be accused of lecherous behaviour, your partner won't accuse you of flirting. That's part of the reason for being there - to flirt.
'Saving Relationships'
I'm No expert on being married. My only qualification is that I have been twice, and now in a permanent relationships for around 18 years. I was about to say serial monogamist until I thought about what that really means.
Generally people using Swinging to save a relationship that is sinking will not work. Just like a new car, a new baby, an expensive holiday, and any number of other things won't work to save a dying relationship. That's because whatever illness is killing the relationship is terminal.
But everything you do every day with or for you partner, can serve to strengthen your relationship. Even if that includes getting naked with friends and having a lot of fun.
In my opinion, swinging along with a lot of other things, saves relationships. It is a common interest. It forces you to get away from the daily humdrum. It gets you out of the house (hopefully on a regular basis.) It forces men to look after themselves (well it should.) It most definitely doesn't involve the kids. How many marriages end when the youngest child leaves home? They didn't fail - they lasted 25 years - you can't call that a failure. They just simply ceased to exist.
Every Friday and Saturday night we meet dozens of committed couples at the club. There are a few exceptions - people who arrive together but are apart. As recently as last Friday night a couple walked in a 9pm sharp when the club opened. We spoke to them and within 5 minutes, Paula, Naomi and I were taking bets about how long they would last. Despite sitting together the distance between them was obvious from their body language and their attitude.
There is also the person who is having an 'affair' by swinging. Deep down, I think there are urges (see Infidelity is just human ) in everyone to jump the fence. Or at least a mild interest in seeing if the grass is greener on the other side. I don't think it is, but that doesn't stop the urge. I think for some people, swinging satisfies the urge without betraying anyone.
I suppose what I am saying is that perhaps swinging is one of the many small things you do that stops your relationship from atrophying, so in this way it does save relationships.
I hope this provokes some controversy - it's a worthwhile discussion.
I think one of the biggest mistakes that people make when they think about non-monogamous relationships is that the couple must be unhappy or trying fill a void in their current relationship - and that simply is not true!
To me that's like saying that the only reason to try a sexual position other than missionary is because you don't like missionary, or it's not working for you.
Swinging / multiple partner sex is just another way to express your sexuality - as a couple.
We have been together for 18 months and swung almost Right from the beginning. Both of us had played up on our partners in previous relationships and know the idea of "eating pork" occasionally is what swinging is all about and is a way to quench the thirst of cheating. We love each other and want to stay together, and the swinging makes our sex life together even hotter than the day we met. That is why we Swing....we still have the odd disappointment here or there in the scene sometimes, but on the majority it is the best fun we have ever had in our lives.
You
So is 
'Saving Relationships' 
There is also the person who is having an 'affair' by swinging. Deep down, I think there are urges (see 