It seems kind of ridiculous to generalize whether someone's going to CHEAT ON YOU based on their zodiac sign.  On the other hand . . . wild, sweeping generalizations are the heart and soul of astrology.  So let's do it.

The website AshleyMadison.com analyzed their members' birthdays to figure out which zodiac signs have signed up for their site the most . . . and therefore, which zodiac signs are associated with people looking to CHEAT.

For men, the zodiac sign with the most cheaters is PISCES.  Aquarius is number two and Cancer is number three.

The men who are LEAST likely to cheat are Scorpio, Sagittarius, and Libra.

For women, the zodiac sign with the most cheaters is GEMINI.  Aries is number two and Virgo is number three.

The women who are least likely to cheat are Libra, Scorpio, and Taurus.

You can see the lists of every zodiac sign ranked by likeliness to cheat HERE.