In study of sexual regret, women regret one-night stands much more than men while men regret missed opportunities much more than women. More religious people regretted having casual sex only slightly more than non-religious people.

See the source article by following the link below:
In study of sexual regret, women regret one-night stands much more than men while men regret missed opportunities much more than women. More religious people regretted having casual sex only slightly more than non-religious people.