Can remember the porn movie (not the photo)

I saw a video a long time ago, it a married couple talking to a therapist about how they both cheated on each other, the wife with a mail man, the husband with another woman so they all desided to meet not know the husbands woman he was cheating with was the mailman's wife, and a couples 4 some Begins, anyone know this video, can't remember who was in it. Help.