Book excerpt: Averitable smorgasbord of sin, John Baxter's Carnal Knowledge is a delightfully unabashed education in sex and erotic culture. Would you ever consent to a knee-trembler at a love hotel? Would you enjoy a hot lunch while watching kinbaku? Would you consider wearing a French tickler, a merkin, a strap-on, or pasties . . . or would you rather just go commando at the Mine Shaft? From Deep Throat to Debbie Does Dallas, from the mile-high club to the Emperor's Club, John Baxter explains it all to you in this decadently definitive work on the many ins and outs of s-e-x, guaranteed to tantalize, edify, and titillate whether you're a novice or an expert in the arts of eros.