In the 70s, footprints were big things. Sometimes they were quite literally big things; such as the giant, and very fuzzy, footprint rugs my sister and I had in our room. (See other things that may have been in your bedroom back then.)
Other times, the feet were smaller.
And in pairs.
If you were cognizant in the 1970s, you likely recall all the pairs of mating feet. Because many adults labored under the incorrect belief that such pairs of feet were somehow not understood by children (umm, this is exactly what many children saw when they opened the door to your bedroom), these sex feet were everywhere.
And — surprise! — there’s sexism involved in such a sexual revolution.
Typically, sex feet are shown as heterosexual couplings in the missionary position; which is neither all that revolutionary or, for many, very pleasurable. We are able to see that it’s a man and a woman doing it missionary style as there are two sets of feet — but not of the same size. This is typically deciphered to mean that the larger feet belong to a man. After all, hetero-normative rules state men are to be larger than their lady partners. And his feet must be much bigger because, you know, big feet mean big penis. That’s the myth, anyway. And he must be on top because he is The Top.
Besides, who would change their minds (cross their legs and feet) and say “no” other than a woman?
But if you think this is all about the Free Love movement, sex feet were often presented or captioned with odd supposedly humorous notions revealing traditional values. Like this ashtray and its “Man does this mean we are engaged” speech bubble.
Along with confusion caused by missing punctuation, there’s more than a little cognitive dissonance between the “free love” and the marital sentiments or concerns. But then, the liberating 70s was always more than a little confusing that way.