This is what I know about George MacBeth, the author of "The Samurai: An Erotic Thriller":
1) He's never actually spoken to a woman, and 2) Everything he knows about sex he learned from teenaged locker room gossip from teenagers who had also never spoken to a woman.
If you like absurd plots sprinkled with an explicit, melodramatic smattering of fetishes, including but not limited to: anal sex, bestiality, and scat, then this is the book for you.
Here's an excerpt (NSFW):
The man threw back his head till the tendons in his neck stretched tight. With one smooth lunging movement, he thrust the nylon down from his waist and reared himself above the empty scabbard, stiff-legged, with his huge bucking organ bared like a sword in the fetid air. His eyes locked on the naked, gleaming blade as his hands went about their business, kneading and wrenching powerfully until the thick tortured thing was finally strangled and its white gluey life gulped and oozed out of the silvered lacquer.