Women tend to use kissing to create a bond with their partners, and to assess them as potential mates. Meanwhile, men use kissing as a means to an end," said Susan Hughes, a psychologist at Albright College in Pennsylvania, USA.
While women usually consider a bad kiss to be a deal-breaker, men reported that they would more than likely still have sex with a woman even if she were a bad kisser.
Psychologists hypothesize that males "perceive a greater wetness or salivary exchange during kissing as an index of the female's sexual arousal/receptivity, similar to the act of sexual intercourse," wrote Hughes.
Is he hitched? I want him!
A scientific study has found evidence that women like to target men who are already in relationships.
Researchers at Oklahoma State University in the US use the term 'mate poaching' to describe this phenomenon.
During the study, they showed a picture of a moderately attractive man or woman to participants.
Half of the participants were told that the prospective mate was single, while the rest were told that they were not.
Researchers Dr Melissa Burkley and Jessica Parker observed that 90 per cent of the women participants were interested in a man when told that he was in a relationship, compared to 59 per cent when told the same man was single.
The results showed that only single women were more interested in pursuing an attached target rather than a single target.