Marissa Mayer holding "Sex and the City" party tonight

At this very moment, a guest tells me, Google executive Marissa Mayer is throwing a "Blahnikfest" to celebrate her birthday and the premiere of Sex and the CIty. She's rented out a theater at San Francisco's downtown Century multiplex for her friends. Is Mayer our Carrie Bradshaw? Quite possibly, though Mayer's Four Seasons penthouse is more fabulous than the Sex and the City scribe. Like the heroine, she's found love in the hunky form of Zachary Bogue — her Mr. Big, though Mayer's the one with the far more impressive resume. She turns 33 today, as we've noted, and while she normally skips birthday parties during odd years — a "quirk," she says — Bogue was out of town today. The party features cakes the exact size and shape of Bradshaw's preferred shoes, made by Shinmin Li, the owner of the Mayer-backed I Dream of Cake bakery, as well as cupcakes flown in from New York's Magnolia Bakery. The invite:

Marissa Mayer holding "Sex and the City" party tonight