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2003 Paris Hilton wears a shimmering, short black dress with matching eyeliner (and a bouffant) in 2003

While a cocktail dressshorter, possibly ritzier might cut it if your host is more relaxed, its best to assume that a floor-sweeping number (or the aforementioned tuxedo situation) is expected

Moreover, Im obsessed with the Celine resort collection its not in stores yet, but trust me, there are fab sheer dresses and semi-transparent faded floral frocks and while Phoebe Philo puts black bras and full briefs under those dresses, my slip will work excellently as I am not one to expose my midriff! An accidental turn as an almost-exhibitionist led me to this Calvin Klein slip