The promiscuity gene or the nympho gene has been identified by scientists. Turns out, it’s genetic. According to a new study, there is gene that predicts a tendency toward infidelity and one-night stands. Those who have “the nympho gene,” were found to be twice as likely to engage in thrill-seeking sexual behaviors as those without it. Why? Two words. Dopamine rush. That stuff is intense. But this study does not give you carte blanche to cheat on your mate. It predicts a a Tendency toward promiscuity. It’s up to you if you want to get your groove on.