It’s unclear as to when the concept of “no strings attached” arose in the relationship scene among “men” and women. It certainly wasn’t during cavemen times when the opposite sexes were beholden to one another on the basis of survival (“men” would hunt, women would figure out how to cook that shit), and therefore seemed to know better than to fuck with the delicate balance that is monogamy.

The movie (which the French call Sex Friends) that vehemently disproves the no strings attached trope
But maybe around the time of the “free lovin'” 60s, “men” got it into their minds that no strings attached sex was a genuine possibility. But let’s be very clear: there are always strings attached. By the very nature of the meeting of two yin and yang genitals, you are attaching yourself to a woman. And then, because of pheromones or whatever, she starts to feel emotional about it, fond of you, even (though logically she shouldn’t ’cause you’re probably an unkempt broke ass). No matter the brevity of the one-night stand you find yourself in, there is also the strings attached of contracting an STD, AIDS, etc. or the chance that she’ll come at you Nan Britton-style and tell you you’re the father of her child–and all in the name of no frills. But the dickful “man” should recognize that there are always, but always, frills.