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.
Hot mama likes to fuck at any time of the day or night. Her son knows about her passions and does not mind. After all, she gives such a great blow job. And then begins a wild rodeo on the cock with splatter at the finish line.