Having great sex in a relationship has traditionally been considered a factor that would stop either partner becoming unfaithful.
But new research has found that having a good sex life may make one’s partner more – not less – likely to stray, a study suggests.
Researchers suggest that people who really enjoy sex are more likely to be unfaithful because they seek out sex with more partners.
As well as finding out that good sex could be a risk factor, the researchers at Florida State University found men with a more-attractive wife were less likely to cheat than women with a more-attractive husband.
The authors say this sex difference is ‘consistent with evidence that partner attractiveness to men than it is to women’.
They also found attractive women were slightly more likely to remain faithful than less attractive women.
But in men, being more attractive was more likely to lead to straying.
The findings came from wide-ranging research into whether you can predict whether someone is likely to cheat in a relationship.
And they found that people whose gaze lingers on attractive ‘alternative’ mates were the ones who would be more likely to cheat – and their marriages more likely to fail.
In the study published in the Journal of Personality and Social Psychology, researchers followed 233 newly married couples for up to three and a half years.
They recorded documented intimate details about their relationships, including marital satisfaction, long-term commitment, whether they had engaged in infidelity and if they were still together.