Sperm of Steel

As a sci-fi writer, Larry Niven is the type who likes to extrapolate the problems and possibilities of a gimmick. Taken to an extreme, that leads to things like the Ringworld series. In smaller doses, you get really, really fun things like this 1971 essay about the dangers of Superman actually landing his Kryptonian rocket in Lois Lane’s hangar deck. A sample:

The problem is this. Electroencephalograms taken of men and women during sexual intercourse show that orgasm resembles “a kind of pleasurable epileptic attack.” One loses control over one’s muscles. Superman has been known to leave his fingerprints in steel and in hardened concrete, accidentally. What would he to to the woman in his arms during what amounts to an epileptic fit?