A beautiful woman, and the mesh on her body perfectly emphasizes all the attractive curves of her body. But why treat her like a backstreet whore is beyond comprehension. I've never understood people who get off on it! And if you really think your partner is a complete whore, you'd better put on a condom or something! In any case, I don't think you fuck a woman at home that rough.
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.