The Official Closing Party of the Folsom Street Fair so you know there is going to be LOTS of sex going on at this thing. THE HOSTS SAY: "Don’t you just wish you could keep the energy of Folsom Street Fair going all night??? SURPRISE! You can with Deviants – CELEBRATING ITS TENTH YEAR! Deviants, the Official Closing Party of Folsom Street Fair, has exploded in popularity. The festivities will be held at the renowned venue Mezzanine at 444 Jessie Street – just a 10-minute walk from the fairgrounds."