Employees of Condé Nast who hadn’t taken off early on Friday got their La Perla panties in a bunch when they spotted porn legend Ron Jeremy lunching in their tony cafeteria at their 4 Times Square headquarters. Casually dressed Jeremy dined at a table of four in the middle of the room while editors and sales executives gaped and whispered. “Everybody in the building was talking about it,” said one Condé insider.