These are results released by ashleymadison.com, the website that caters to people who sign up to be connected with others who want to have an affair, so it is cold hard data on people who are actively cheating. They compared birthdates of their members to come up with which zodiac signs are most (and least) likely to cheat. 

Yes, 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.

For men, the zodiac sign with the most cheaters is PISCES (Feb 20 - March 20).  Aquarius (Jan 21 - Feb 19) is number two and Cancer (June 22 - July 22) is number three.

The men who are LEAST likely to cheat are Scorpio (Oct 24 - Nov 22), Sagittarius (Nov 23 - Dec 22), and Libra (March 21 - April 19).

For women, the zodiac sign with the most cheaters is GEMINI (May 21 - June 20).  Aries (March 21 - April 19) is number two and Virgo (Aug 23 - Sep 22) is number three.

The women who are least likely to cheat are Libra (March 21 - April 19), Scorpio (Oct 24 - Nov 22), and Taurus (April 20 - May 20).