Or portrayals of sex in historical fiction, epic fantasy, classical mythology, spy novels...
It is interesting, though, to note that while this is true, humans are very complicated creatures insufficiently specified by our genes and are readily able to tie sex mentally with all kinds of things given the proper circumstances.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
Notes for future OT posters:
1. Please add the 'open_thread' tag.
2. Check if there is an active Open Thread before posting a new one. (Immediately before; refresh the list-of-threads page before posting.)
3. Open Threads should be posted in Discussion, and not Main.
4. Open Threads should start on Monday, and end on Sunday.