According to a new study, men view women with more-attractive and feminine features as the best for one-night stands, and less-attractive women with more masculine features are better for marriage.

"Feminine features" meant larger eyes, small noses, full cheeks, a small jawbone, and a younger overall look. Those are the kind of women that men said they wanted to have sex with, but not necessarily relationships.

Researchers theorize that mean have to worry about more-attractive women cheating on them, and if a woman cheats on the man, there is a chance that he will end up raising another man's child. They suggest it is a biological instinct not to do that.

So when it comes to settling down, men are not necessarily looking for the most-attractive woman -- they want someone who will not cheat on them.

Read more: Counsel & Heal