This story is absolutely true as written.
My wife Eva and I have been playing around in the swinger world for many years, but we do not consider ourselves all-knowing about swinging. From our experience there are all different types of couples and people who call themselves swingers.
First there are fake swingers and by this, I mean they are most often couples who enjoy engaging in the swinger social scene and identifying themselves as swingers. However, they ultimately never participate in sex outside their relationship. These folks enjoy parties and the social scene mostly.
Then there are couples who call themselves swingers whose purpose is to enjoy the exhibitionist side of swinging. They only ever share sex with each other, but the juice for them is knowing that other people are watching them. We see these folks often in swinger clubs and sometimes parties.
Then there are what I will term the original swingers and I say that because I think their model is what most non-swinger types imagine when they hear the term swinger. These couples have terms such as same room, different room, full swap, partial swap, off premise etc. etc. These terms describe the boundaries within which they will agree to participate, meaning they will only have sex in the same room as their partner, different room etc. etc. There are all different reasons for these boundaries depending on the couple. Some have more rules and requirements than the US Penal code. For example, no kissing, no penetration, certain words are out of bounds and so on.
Then there are those couples or singles who have few rules or requirements, and they prefer group sex environments. This is the category that Eva and I identify with.
None of these groups are right or wrong in our opinion, rather they do what is comfortable for them and what gives them the most pleasure.
Eva and I began our swinging experience with another couple who we came in contact with on a Mexican website called Fantasiasmotel, which no longer exists. We found that most members of this site (singles and couples) were rather hardcore and they were there for real casual sex hookups. Seldom did we run across no-shows which is common these days.
Our friends live in a different city from us and once or twice a year we travel to their city and rent a hotel suite where they join us for an evening of sexy fun. They are Roberto and Martina.