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.
This Masha won't let any dick past her. Cyclist Stepa just stopped to sit and rest. And that bitch came on to him. How can you resist? That's how guys are - you let your chick go out for an hour, and look, someone's already screwing her in the asshole. And then she acts like a prude - her mother won't let her, only after the wedding! You've got to pull them off the first night!
That's what I want to do.