If sexuality is fluid, then my tide is swelling for Salma Hayek. Seriously, I could just listen to her speak for hours, my head nestled in her pillow-y bosom. The actress was on “Late Night With David Letterman” last night and really it’s kind of irrelevant what she talked about — hurting her ankle? her earrings? her, blech, husband? — because I was hypnotized simply by the cadence of her voice. She is dreamy.