He did not have time to get off the train, as the slut already offers to relax. And indeed, when the wife stayed at home - so want to feel like a young stud, to pull away at liberty. And here is a pretty frau looking at you with adoration. Well, it doesn't hurt to shake things up in a foreign city and leave a memory of - Yeah, I've been here, I remember fucking a brunette, cum on her ass abundantly. A male, he's a male at 50 years old!
Watching your wife suck other people's dicks is a buzz kill. And she understands that by licking other people's testicles, her husband's boner will get sharper. So these swinger couples swap to sharpen their senses, bring back the novelty, and make their orgasms brighter. Only I would make the lighting not so bright, then there would be more understatement and less embarrassment.