That seems to just happen as they get older. The longer a SF series goes on the more it devolves into the author's sexual wish fulfillment fantasies. My personal opinion is that the Fannish/convention lifestyle (which back in the 70's was pretty different than it is now) just kind of "refocused" all of those guys on the cock'n'quim aspects of things. IOW, they got horny between major conventions and that came out in their writing. Of course, that's just my own opinion, but the part about this happening to many major writers in SF is pretty much the truth.Jodorowsky's Acolyte wrote:It makes me wonder, though. How come some classic sci-fi authors have incorporated so much insane sexual content, some of which can be too insane for comfort, into their writings? How did the explicit sex scenes served Herbert's purpose in Heretics and Chapterhouse? How do the incestuous scenes in To Sail Beyond the Sunset and other works serve Heinlein's purpose?
And Larry Niven is one to talk. Ever read the fourth Ringworld book? It's one big vampire orgy from one end of the Ringworld to the other. Talk about benefitting from some editing. Sheesh!