@Someone
That is pretty cool. The only difference for us is that neither is interested in anything more than an exchange of bodily fluids. She doesn't want to spend a weekend with a guy, nor do I with a woman.
Much like you, in our over 20 years of doing this, we have had ONE bad experience and a few weird ones.
Your advice to new couples is good. Ours is similar but different. We tell them that if you are not turned on by your spouse fucking someone else, exit, stage left NOW.
There are a few guys that can make my wife cum much differently than with me. I think it's awesome. They have their 'skillz' and it works! I encourage to see them when she wants. Fuck, one guy will lick her pussy for THREE hours. I ain't doing that. There are a few women that just make me lose it and she knows it. There is insane chemistry. When we first started she felt threatened that I would leave her for a single female that we knew. It took a lot of talking to her by me and the single female for her to ->start<- to believe we were not interested in a relationship. Now, 15 years later, she realizes that we were right, there was no way.

