During the sexual revolution in the United States and Europe in the 1960s and 1970s, social attitudes to sexual issues underwent considerable changes.

They are not in an exclusive romantic relationship, and probably never will be.

However, a 2011 study published in The Journal of Sex Research found that two out of five single women and one out of five single men in "friends with benefits" relationships hoped that their relationship would eventually turn into a full-fledged romance.

This is especially distorting towards others' impressions because 98% of college hookups involve kissing, 81% of hookups involve more than kissing, and only 34% of hookups involve penetrative sex.

Television and movies project distorted depictions of casual sex because they also commonly portray people who have just hooked up as emotionally satisfied and physically pleasured while simultaneously emotionally detached, which is not always the case.

Nearly 61% of men and 34% of women who had casual sex over the break had slept together within 24 hours of meeting.

A one-night stand is a single sexual encounter between individuals, where at least one of the parties has no immediate intention or expectation of establishing a longer-term sexual or romantic relationship.

Attitudes to casual sex range from conservative and religious views, the extreme of which may result in imprisonment or even capital punishment for sexual relations outside heterosexual marriage, to liberal or libertarian views, the extreme of which is free love.

Because automobile ownership boomed and the number of options for dating venues, such as movie theaters and jazz halls, increased significantly during this time, parental involvement in the courtship process began to decrease.

Overall, there was a perception that sexual norms are far more permissive on spring break vacation than at home, providing an atmosphere of greater sexual freedom and the opportunity for engaging in new sexual experiences.

Of the 681 students who completed a questionnaire after the break, 15% of males and 13% of females had engaged in casual sex during the break.

Swinging can take place in various contexts, ranging from a spontaneous sexual activity at an informal social gathering of friends to a regular social gathering in a sex club (or swinger club), private residence, or other pre-arranged location such as a hotel, a resort, or a cruise ship.