This freewheeling cabaret with a revolving cast of underground performers has its mind in the gutter and its heart in the right place. The Sex Diaries shuffles a group of kinky comedians, performance artists, and freaks like an enthusiastic amateur DJ every Friday and Saturday night on a cramped stage in the Mission District. Highlights from a recent show included a porn-addicted sock puppet, Sean Kelly's tale about a swinger party plagued by a rogue "ball cupper," Angie Krass' superior Southern-fried comedy, and an alluring Amazonian sex worker named Anomaly reading from her extremely well-informed "Whore's Glossary." Krass' riffs on chickens and lubrication sent the audience into hysterics, and Anomaly's charismatic lessons were invaluable for neophytes who can't tell a "BBW" from a "BBBJ." (You'll have to see it to find out the difference.) These fearless, sexy oddballs are just the type of people who help make our city great. The show itself is a mixed bag that occasionally feels like a Gong Showfor the Marquis de Sade the combination of kink and undisciplined casual performances inspired at least a few walkouts on the night I went. But on the whole The Sex Diaries is a fun diversion for San Franciscans biding their time till the next Folsom Street Fair.