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Elizabeth Berkley, 'Showgirls'
Berkley wanted to distance herself from her squeaky-clean "Saved by the Bell" character (whose biggest vice was a brief dalliance with caffeine pills) with her first big film role. So she signed on to "Showgirls," a movie that defined gratuitous nudity for a new generation. Pretty much all of Berkley's bits were on display in the movie, and it features some of the most unintentionally unerotic sex scenes in film history. But it's now a cult favorite, and it's one of MGM's Top 20 home-video sellers of all time.
Bonus leer-fodder for those who enjoy the male torso: Kyle MacLachlan's naked chest features in a particularly uncomfortable-looking sex scene in a pool.