When I was a teen, my siblings and I passed an old copy of The Sensuous Man back and forth behind our parents' backs. A sex manual from '71 or so, it gave tips not only for the bedroom, but for dates and meeting places. It suggested taking your date to the zoo, singling out the monkey house. "Monkeys do scandalous things in public," it added.
That they do, Sensuous Man. That they do.
The first three of these are without sound; the fourth wouldn't be the same without it. All of them are quite brief and thoroughly inappropriate.