Watch Cheaters Full Movie Free Online 123Movies. What happens when married people feel the need to stray? What aren't they getting from their partners that makes them have sex with another person? You'll find out with these five torrid, sexy tales of cheating and breaking the bonds of marriage. Some of the sexiest, erotic adult actresses spin a tale of sex and infidelity, but at the end of the day what they don't know won't hurt them.