Article continues below advertisementOlivia Wilde made quite an entrance during New York Fashion Week, rocking a daring sheer look that had all eyes on her - but it came with an unexpected wardrobe slip.The 41-year-old actress and director stepped out in a see-through black top, layered under an oversized blazer and paired with sleek matching trousers. Going braless gave the outfit an edgier vibe, but while posing for photographers, Wilde accidentally suffered a nip slip.Article continues below advertisementStill, The O.C.