Pamela Anderson knows how to make an entrance — and an exit. The “Last Showgirl” actress, 59, was all smiles at the Kering Foundation Caring For Women Dinner Thursday night in a slinky black Gucci dress ($4,800) with a deceptively demure front. From the side, a hip-high slit showed a flash of stiletto-clad leg, and the rear view revealed an open back. The long-sleeve jersey gown made its debut on the Gucci runway for fall 2026, artistic director Demna’s first for the Italian house. Anderson seemingly took a cue from the show and styled hers with sheer black stockings, glossy pointed pumps and a glittering clutch. She made the look her…