Ergot Suum and the Rampaging Ooze-Worm of Zupiter by H. Cogito Epsilon

It's kind of hard to describe what this book is. The closest I can come is to say that it's kind of like what a really smutty erotica novel might read like in the Futurama universe. It's a farce set in a zany SF universe where the plot chiefly exists to get our Earthling hero into sexual situations with a variety of alien females. There are lots and lots of human male-on-alien female sex in this book.

Now, before you run out and get yourself a copy, be forewarned, the alien women aren't even...