Fun, though brief, article by Maddie Crum for The Huffington Post regarding one of the lesser known literary interests of proficient sci-fi writer Isaac Asimov.  Specifically, the fact that he penned several books on *ahem* dirty limericks:

http://www.huffingtonpost.com/2014/07/17/asimov-limericks_n_5523627.html

As big a fan as I am of Mr. Asimov’s classic sci-fi works (in particular the original Foundation series), when you write as much as he did in his lifetime, I suppose you’re going to find the oddball works here and there.  According to this article, Mr. Asimov wrote or “presented” at least 9 dirty limerick books!

As to how good or bad these particular works may be…based on the examples presented in the article, I doubt I’ll be headed to Amazon anytime in the near future to purchase any of those books! 😉