Go back to the earlier statement that swinging is mainly a couples activity and it is about fulfilling fantasies.
Yes, there are many couples out there who have fantasies, which involve an extra male or 4 or 5 even.
Adults have a mind of their own and in this lifestyle, you know they are the ones to trust. Do not enter this lifestyle if you are trying to 'save' your marriage.
If you swing or become a swinger, you have to be honest and respectful. A lot of couples think this will help but in the end, the results could worse than before you started.
If you are new to swinging or even a seasoned swinger, then Swingular is the site for you.