I use to be heavily involved in this scene. You are right when you say a lot of committed people cheat. So logically you would rather have them do it in front of you. So you have threesomes, foursomes, whatever your heart desires. It is cool and the two of you as a couple flourish and get to "know" each other better. Well let me tell you something all of the people who I know did this and I mean all of them also cheated on the side. This is what I find to be so funny b/c all of the swinging couples are so dillusional because they think they are so strong and open with their mate. Well guess what people more than like your wife/husband is getting some action on the side. Believe it or not it is more than likely true. But all of you hardcore swingers will think in your head nah not me we are close we do it together. Whatever keep telling yourselves that to make you feel more secure. Truth hurts though.