[Dongster]

We were on vacation in a rented cottage and my wife best friend and her husband came to join us for a couple of days. While he had to go back to get some work done (he's a contractor) she stayed with us for a couple more days.
That evening the three of us went to a bar. Had a good time but when we wanted to go home my wifes' friend was "missing". We went to look and found her outside tits out getting fucked from behind by some bloke. Caught in the action they abandoned their "get together"
My wife and I knew her sex life wasn't quite well. But this was a surprise for us.
Turned out she was regulary fucking other men because she and her hubby hardly had sex anymore.
The next evening we went to the same bar again, and she asked us if it was OK that the same bloke came with us to the cottage. It wasn't a problem for us. We briefly saw, but mostley heard them going at it for two rounds.
My wifes' friend and her husband are still together. And he still doen't know a damn thing about it.
And every time I talk to him about whatever it crosses my mind.