It’s S&M for Ph.D.s: Cuckolding, in which men watch their wives have sex with other guys, is catching on among people with high IQs who revel in the psychological agony.
When he hears his wife moan with pleasure while she has sex with another man, Paul Pines feels bad—then good. When Paul’s wife tells him that the other man is much better at sex than he ever was, Paul feels worse—then better. But of course he does: He arranged this encounter, in which he watches in agony as his wife makes love to another guy. And almost as soon as it’s over, he’ll start planning the next one.
via Cuckolding: The Sex Fetish for Intellectuals – The Daily Beast.