u/joss_andies

Scenario 1: One of the participants is cheating on their spouse. The other members of the group are actively encouraging them to do so.

Scenario 2: All participants are cheating on their respective spouse. They all act as each other's alibis if questions are ever asked, like they are all attending a work conference, for example.

I am interested in stories in which the group sex has been going on for a long time, and one of the spouses begins to suspect that something is going on. Thanks.

The betrayed partner is oblivious as to what is happening. They never get suspicious at all.

Say a married couple try swinging for the first time. The husband hates it but the wife loves it. So much so that she decides to carry on seeing other people behind her husband's back.

But one of the husbands accidentally discovers that his wife has been having secret threesomes with the other couple for years.