Tout les San Francisco seems to have already gone gaga for Jean Paul Gaultier, the Parisian bad boy of exquisite yet edgy haute couture. And his de Young Museum exhibition, “The Fashion World of Jean Paul Gaultier: From the Sidewalk to the Catwalk,” doesn’t even officially open until Saturday. @JPGaultier and #gaultier are trending madly in the local Twittersphere, with felicitations and invites for the designer to catch Kathleen Turner in SHN’s Theater’s production of “High” or make the scene at a number of the city’s drag clubs. But last night deep-pocketed donors, couture-clad Swells and leather-bound toga boys were in the cat-bird seat at Ken Fulk‘s tricked-out SOMA loft where the devilish designer delighted in the fanfare of this de Young dinner fete. Site of the famed, former Mr. S. Leather Factory, Fulk’s factory of fun set the stage for a “heavenly” Paula LeDuc dinner followed by late-night dance romp downstairs where the delights were slightly more naughty-in-nature.