A sea of young sexy girls in their gritty, 20-something tattoos and tank tops awaits at the Lexington Club, one of the top lesbian nightclubs in San Francisco. Technically, guys are allowed in, but you’d best behave, as this is a formidable crew. A new female arrival is sure to get the once over at the bar, especially if she is looking sharp in her boy-cut hair or hipster dreadlocks. The setting is boho fantasy, with beautiful vintage woodwork, church pews for benches, blood red walls and art shows of good quality, plus a pool table and jukebox. Get a can of cheap beer and do your best to chat up the smart, educated, sexy young things. Be sure to check out the artfully embellished bathrooms. Billed as “your friendly neighborhood dyke bar,” the Lexington is a surprisingly rare breed in San Francisco. They just don’t make dyke bars the way they used to, or at least not as plentifully, but this one is the genuine article with plenty of ambiance. On Friday nights at Lexington Club, don’t miss the Good Girl Bad Girl cocktail hour. From 9-10pm, good girls reap their rewards with $1 margs. The bad girls get their due between 10-11pm with $1 tequila shots.