A fascinating post.

As part of a couple (long term relationship), we play with other individuals, both men and women.

When the other person, whatever sex, is part of anther relationship - we both find it more exciting!

There are no bad feelings, just sexiness.

We are not looking to break any relationship up, (in the slightest), and we are faithful to each other. (in our definition of faithful).

I'm not sure this adds anything, but just saying from my /our view on things.
It can be healthy, not negative..(just take it for what is is, I mean)