Who says men don't like to cuddle? Not the Kinsey Institute.

The group that studies human sexuality recently asked 1,009 heterosexual middle-aged and older couples in long-term relationships about how satisfied they are with their relationships and sex lives. The results may surprise you.

The study found kissing and hugging are more important to the happiness of men than of women. In fact, men who reported frequent cuddling with their partners were on average three times as happy with their relationships, while such activity had little effect on relationship satisfaction for women.

Both men and women reported greater happiness the longer they stayed together. However, men were more likely than women to report being happy in their relationships, while women were more likely to report being satisfied with sex -- which completely bucks old stereotypes.

Julia Heiman, director of the Kinsey Institute, said, "This study on heterosexual couples provides a basis for future research on sex and gender, such as how same-sex couples may or may not show similarities and differences in relationship and sexual satisfaction."

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