The venues and themes may change, but the dress code stays the same. "We command the following attire at our fetish events," the masters say on the Website. Rubber. Vinyl. Military uniforms. And, yes, leather: fabulous, skintight, slick, and sexy leather. (There are more attire allowances, but you have to check them out for yourself.) The parties have been a monthly hit for nearly a decade, largely because the rules themselves create the fantasy -- the freedom within boundaries (or bondage). If leather is your thing, enjoy.